{"title":"400e Collection","description":"\u003cp\u003e\u003cspan\u003eBarra Airguns' 400e, the first production full-auto .177 BB gun powered entirely by electricity, eliminates the need for CO2 cartridges, delivering unmatched convenience and shooting performance.\u003c\/span\u003e\u003c\/p\u003e","products":[{"product_id":"3000-count-zinc-plated-4-5mm-bbs","title":".177 cal\/4.5mm Zinc Plated Steel BBs - 3,000 Count","description":"\u003cp\u003eDesigned for precision, engineered for performance. Barra Airguns Zinc-Plated Steel BBs have been rigorously tested in a wide range of airguns, across different climates and shooting conditions, ensuring top-tier reliability. While optimized for the \u003ca href=\"https:\/\/barraairguns.com\/pages\/400e\" title=\"400e\" rel=\"noopener\" target=\"_blank\"\u003e400e full-auto air rifle\u003c\/a\u003e, these BBs deliver exceptional performance in CO₂, multi-pump, and spring-powered airguns alike.\u003c\/p\u003e\n\u003cp\u003eEach BB is precisely machined with a high-quality zinc coating, giving it an ultra-smooth finish for superior feeding, accuracy, and velocity. The result? Tighter groupings and more consistent shots, whether you're training, plinking, or competing.\u003c\/p\u003e\n\u003cp\u003ePackaged in a re-sealable plastic container, these BBs stay air-tight for maximum longevity. The easy-pour spout ensures hassle-free loading, so you can spend more time shooting and less time dealing with spills.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e✔ Caliber: 0.177 (4.5mm)\u003cbr\u003e✔ Material: Zinc-coated steel for smooth feeding and durability\u003cbr\u003e✔ Diameter: 4.40 ± 0.0025mm (tighter tolerance for enhanced performance)\u003cbr\u003e✔ Optimized Surface Finish: Improves accuracy, feeding, and velocity\u003cbr\u003e✔ Container: Reusable plastic jar with an easy-pour spout\u003cbr\u003e✔ Compatibility: Works with all .177-caliber airguns and powerplants\u003c\/p\u003e\n\u003cp\u003eUpgrade your shooting experience—choose Barra Airguns Zinc-Plated Steel BBs for unmatched precision and reliability.\u003c\/p\u003e","brand":"Barra Airguns","offers":[{"title":"Default Title","offer_id":42099844907256,"sku":"4056","price":10.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0284\/2571\/5817\/files\/BBs-2-Enhanced-SR.jpg?v=1762530679"},{"product_id":"400e-gen-2-metal-black","title":"400e Gen 2 Metal - Black","description":"\u003cp\u003eIt’s time to spend less time hassling with CO2 cartridges and more time shooting. The 400e, as the first production full-auto .177 BB gun powered entirely by electricity, offers unmatched convenience. The 400e gives you over 1,000 shots on a single battery charge and fires at velocities up to 440 FPS.\u003c\/p\u003e\n\u003cp\u003eBuilt to last, the 400e Metal features a metal upper, lower, faux suppressor, and hand-guard for durability and long-term reliability. \u003cspan\u003eThe 400e Metal handles a wide range of steel BBs, giving you the flexibility to shoot various types of ammo reliably and consistently. \u003c\/span\u003eIts upgraded feeding system provides smoother operations, ensuring an uninterrupted shooting experience.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe 400e comes with a 11.1V LiPo battery, 50 round magazine, speed loader, flip-up sights, and USB balanced charger\u003c\/strong\u003e, so you're ready to go right out of the box.\u003c\/p\u003e","brand":"Barra Airguns","offers":[{"title":"Default Title","offer_id":42757724143864,"sku":"4096","price":490.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0284\/2571\/5817\/files\/400e_Black-1.jpg?v=1762531817"},{"product_id":"11-1v-35c-lipo-2200mah-battery-with-deans-connection","title":"11.1V LiPo Battery","description":"\u003cdiv\u003eEquip your 400e air rifle with this powerful 11.1V Lithium Polymer battery, designed for consistent, high-energy output over 1,000 shots per charge. This LiPo battery is a 11.1V, 3S1P configuration with cell voltage between 3.2-4.2V. It has a 2200mAh capacity and 35C discharge rate, providing your airgun with the dependable power it needs. The main lead is a Deans connection or T plug. \u003cstrong\u003eCharger sold separately.\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation Tips\u003c\/strong\u003e: Inspect for any signs of damage or swelling before each use. Use only a LiPo balance charger, charging each cell up to 4.2V (total pack voltage up to 12.6V). Avoid unattended charging for safety. When shooting, connect the main lead to your 400e and enjoy smooth operation until the charge runs low.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDischarge Protection\u003c\/strong\u003e: Don’t let the cells fall below 3.2V per cell to avoid damage. Using a voltage alarm is recommended for added security against over-discharge.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterials \u0026amp; Performance\u003c\/strong\u003e: This soft pack battery combines low resistance with light weight, boasting a power density of up to 235Wh\/kg. Made from premium materials to ensure consistent performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesigned and Manufactured by Zeee\u003c\/strong\u003e: Created by Zeee, a leader in LiPo battery technology with decades of R\u0026amp;D experience, ensuring top-tier quality and innovation for your 400e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"aircall-extension-app\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"aircall-extension-app\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"aircall-extension-app\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"aircall-extension-app\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"aircall-extension-app\"\u003e\u003c\/div\u003e","brand":"Barra Airguns","offers":[{"title":"Default Title","offer_id":42877955703032,"sku":"4106","price":20.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0284\/2571\/5817\/files\/barra_battery_lipo_400e.jpg?v=1762531999"},{"product_id":"400e-magazine-50-round","title":"400e Magazine - 50 Round","description":"\u003cdiv id=\"aircall-extension-app\"\u003e\n\u003cp\u003eWhen one magazine isn’t enough, pick up affordable spares for your 400e air rifle. Each spare holds 50 steel .177 cal (4.5mm) BBs—ideal for practicing mag changes, speed drills, or just spending more time shooting. This magazine is not compatible with other ammunition.\u003c\/p\u003e\n\u003cp\u003eConstructed with a heavy-duty steel housing and featuring a classic M4 design that’s stood the test of time, the magazine is fed by an internal spring. To load, push down the BB follower and use a BB speed loader. As the magazine fills, increased resistance will signal it's time to stop—do not overfill, as it can cause jams and damage the spring.\u003c\/p\u003e\n\u003cp\u003eEngineered for thousands of reliable shots, regular maintenance is key. If jams occur, a single drop of silicone oil on the BB follower, left standing overnight, will keep the spring properly lubricated for long-term use.\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"Recommended Ammo\" href=\"https:\/\/barraairguns.com\/pages\/400e-recommended-ammunition\"\u003eClick here\u003c\/a\u003e to view recommended ammunition for this magazine.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Barra Airguns","offers":[{"title":"Default Title","offer_id":42935900078328,"sku":"4104","price":20.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0284\/2571\/5817\/files\/50round2.jpg?v=1762532021"},{"product_id":"bb-speedloader","title":"BB Speedloader Gen 2","description":"\u003cp\u003eThis precision-engineered .177 (4.5mm) caliber speedloader streamlines BB loading, making it an essential accessory for any airgun enthusiast. Specifically designed for magazines compatible with .177 caliber BBs, it pairs seamlessly with the 400e air rifle and most other .177 BB airguns.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimal Capacity\u003c\/strong\u003e: Holds up to 200 BBs for smooth operation; the BB plunger functions best when loaded at this mark.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuick Load Function\u003c\/strong\u003e: Each compression of the durable, all-metal push rod loads 5 BBs into your magazine, providing rapid and efficient loading.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eErgonomic Design\u003c\/strong\u003e: Lightweight plastic housing ensures easy handling, letting you monitor remaining BBs at a glance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt for Durability\u003c\/strong\u003e: The updated steel rod offers superior strength and reliable performance, promising years of consistent use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWith its ergonomic grip and robust design, this speedloader combines comfort and function, making loading quick, easy, and efficient. Ideal for maximizing your airgun experience with minimal reloading time!\u003c\/p\u003e","brand":"Barra Airguns","offers":[{"title":"Default Title","offer_id":42935912726776,"sku":"4105","price":12.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0284\/2571\/5817\/files\/speedloadergen21.jpg?v=1762532028"},{"product_id":"400e-gen-2-metal-tan","title":"400e Gen 2 Metal - Tan","description":"\u003cp\u003eIt’s time to spend less time hassling with CO2 cartridges and more time shooting. The 400e, as the first production full-auto .177 BB gun powered entirely by electricity, offers unmatched convenience. The 400e gives you over 1,000 shots on a single battery charge and fires at velocities up to 440 FPS.\u003c\/p\u003e\n\u003cp\u003eBuilt to last, the 400e Metal features a metal upper, lower, faux suppressor, and hand-guard for durability and long-term reliability. \u003cspan\u003eThe 400e Metal handles a wide range of steel BBs, giving you the flexibility to shoot various types of ammo reliably and consistently. \u003c\/span\u003eIts upgraded feeding system provides smoother operations, ensuring an uninterrupted shooting experience.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe 400e comes with a 11.1V LiPo battery, 50 round magazine, speed loader, flip-up sights, and USB balanced charger\u003c\/strong\u003e, so you're ready to go right out of the box.\u003c\/p\u003e","brand":"Barra Airguns","offers":[{"title":"Default Title","offer_id":43504387981560,"sku":"4103","price":499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0284\/2571\/5817\/files\/400e_Tan-1.jpg?v=1755191551"},{"product_id":"400e-gen-2-polymer-black","title":"400e Gen 2 Polymer - Black","description":"\u003cp\u003eIt’s time to spend less time hassling with CO2 cartridges and more time shooting. The 400e, as the first production full-auto .177 BB gun powered entirely by electricity, offers unmatched convenience. The 400e gives you over 1,000 shots on a single battery charge and fires at velocities up to 440 FPS. \u003cbr\u003e\u003cbr\u003eThe 400e Polymer is built with polymer materials for the upper, lower, handguard, and faux suppressor, making it a budget-friendly option while maintaining the same high-quality internal components as the 400e Metal. The 400e Polymer handles a wide range of steel BBs, giving you the flexibility to shoot various types of ammo reliably and consistently. Its upgraded feeding system provides smoother operations, ensuring an uninterrupted shooting experience.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe 400e comes with a 11.1V LiPo battery, 50 round magazine, speed loader, flip-up sights, and USB balanced charger\u003c\/strong\u003e, so you're ready to go right out of the box.\u003cbr\u003e\u003c\/p\u003e","brand":"Barra Airguns","offers":[{"title":"Default Title","offer_id":45670855672056,"sku":"4150","price":300.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0284\/2571\/5817\/files\/400e_Poly-1.jpg?v=1755183600"},{"product_id":"400e-magazine-100-round","title":"400e Magazine - 100 Round","description":"\u003cdiv id=\"aircall-extension-app\"\u003e\n\u003cp\u003eWhen a single magazine isn't enough, pick up affordable spares for your 400e air rifle. Each spare magazine is designed to hold 100 steel .177 cal (4.5mm) BBs—perfect for practicing magazine changes, speed drills, or extending your shooting sessions. This magazine is not compatible with other types of ammunition.\u003c\/p\u003e\n\u003cp\u003eBuilt with a durable polymer housing and featuring a sleek, modern M4 magazine silhouette, it’s engineered to reliably feed thousands of rounds for hours of fun. The magazine is fed by an internal spring; use a BB speed loader to fill it. As the magazine fills, you’ll notice increased resistance—stop loading when this happens to prevent overfilling, which can cause jams or damage the spring.\u003c\/p\u003e\n\u003cp\u003eFor smooth operation, regular maintenance is recommended. If jams occur, place a single drop of silicone oil on the BB follower and let it stand overnight. This will keep the spring properly lubricated, ensuring optimal performance for years to come.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlease Read: \u003c\/strong\u003eFor flawless performance with this 100 round magazine, we highly recommend using \u003ca href=\"https:\/\/barraairguns.com\/products\/3000-count-zinc-plated-4-5mm-bbs?pr_prod_strat=pinned\u0026amp;pr_rec_id=2200f1595\u0026amp;pr_rec_pid=7469516816632\u0026amp;pr_ref_pid=7670553673976\u0026amp;pr_seq=uniform\" rel=\"noopener\" target=\"_blank\"\u003eBarra Airguns Zinc Coated Steel BBs\u003c\/a\u003e. These BBs are precision made to ensure smooth operation and prevent jamming. Using low quality or non-recommended BB, such as those commonly found at big box retailers or online marketplaces, can lead to feeding issues, jams, and potential damage. Even so called \"high quality\" BBs often have inconsistencies that cause problems over time. The 100 round magazine was engineered with precision ball bearings, and inconsistent BB sizes from other brands have led to users experiencing jamming issues.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Barra Airguns","offers":[{"title":"Default Title","offer_id":45671035142392,"sku":"4158","price":25.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0284\/2571\/5817\/files\/400e_100_round_magazine_-_1.jpg?v=1729175471"},{"product_id":"zinc-plated-177-cal-4-5mm-bbs-6-000-count","title":".177 cal\/4.5mm Zinc Plated Steel BBs - 6,000 Count","description":"\u003cp\u003eDesigned for precision, engineered for performance. Barra Airguns Zinc-Plated Steel BBs have been rigorously tested in a wide range of airguns, across different climates and shooting conditions, ensuring top-tier reliability. While optimized for the \u003ca href=\"https:\/\/barraairguns.com\/pages\/400e\" title=\"400e\" rel=\"noopener\" target=\"_blank\"\u003e400e full-auto air rifle\u003c\/a\u003e, these BBs deliver exceptional performance in CO₂, multi-pump, and spring-powered airguns alike.\u003c\/p\u003e\n\u003cp\u003eEach BB is precisely machined with a high-quality zinc coating, giving it an ultra-smooth finish for superior feeding, accuracy, and velocity. The result? Tighter groupings and more consistent shots, whether you're training, plinking, or competing.\u003c\/p\u003e\n\u003cp\u003ePackaged in a re-sealable plastic container, these BBs stay air-tight for maximum longevity. The easy-pour spout ensures hassle-free loading, so you can spend more time shooting and less time dealing with spills.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e✔ Caliber: 0.177 (4.5mm)\u003cbr\u003e✔ Material: Zinc-coated steel for smooth feeding and durability\u003cbr\u003e✔ Diameter: 4.40 ± 0.0025mm (tighter tolerance for enhanced performance)\u003cbr\u003e✔ Optimized Surface Finish: Improves accuracy, feeding, and velocity\u003cbr\u003e✔ Container: Reusable plastic jar with an easy-pour spout\u003cbr\u003e✔ Compatibility: Works with all .177-caliber airguns and powerplants\u003c\/p\u003e\n\u003cp\u003eUpgrade your shooting experience—choose Barra Airguns Zinc-Plated Steel BBs for unmatched precision and reliability.\u003c\/p\u003e","brand":"Barra Airguns","offers":[{"title":"Default Title","offer_id":46140245115128,"sku":"4166","price":15.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0284\/2571\/5817\/files\/BBs-1-Enhanced-SR.jpg?v=1738259325"},{"product_id":"400e-gen-2-metal-tan-refurbished","title":"400e Metal - Tan (Refurbished)","description":"\u003cp\u003eIt’s time to spend less time hassling with CO2 cartridges and more time shooting. The 400e, as the first production full-auto .177 BB gun powered entirely by electricity, offers unmatched convenience. The 400e gives you over 1,000 shots on a single battery charge and fires at velocities up to 440 FPS.\u003c\/p\u003e\n\u003cp\u003eBuilt to last, the 400e Metal features a metal upper, lower, faux suppressor, and hand-guard for durability and long-term reliability. Its upgraded feeding system provides smoother operations, ensuring an uninterrupted shooting experience.\u003c\/p\u003e\n\u003cp\u003eThe 400e comes with a 11.1V LiPo battery, 50 round magazine, speed loader, flip-up sights, and USB balanced charger, so you're ready to go right out of the box.\u003c\/p\u003e","brand":"Barra Airguns","offers":[{"title":"Like New","offer_id":46544974151928,"sku":"4103RB","price":335.0,"currency_code":"USD","in_stock":false},{"title":"Good","offer_id":46544974184696,"sku":"4103RBB","price":285.0,"currency_code":"USD","in_stock":false},{"title":"Acceptable","offer_id":46544974217464,"sku":"4103RBC","price":235.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0284\/2571\/5817\/files\/400e_gen_2_tan_1_ps.jpg?v=1750977014"},{"product_id":"400e-gen-2-metal-black-refurbished","title":"400e Metal - Black (Refurbished)","description":"\u003cp\u003eIt’s time to spend less time hassling with CO2 cartridges and more time shooting. The 400e, as the first production full-auto .177 BB gun powered entirely by electricity, offers unmatched convenience. The 400e gives you over 1,000 shots on a single battery charge and fires at velocities up to 440 FPS.\u003c\/p\u003e\n\u003cp\u003eBuilt to last, the 400e Metal features a metal upper, lower, faux suppressor, and hand-guard for durability and long-term reliability. Its upgraded feeding system provides smoother operations, ensuring an uninterrupted shooting experience.\u003c\/p\u003e\n\u003cp\u003eThe 400e comes with a 11.1V LiPo battery, 50 round magazine, speed loader, flip-up sights, and USB balanced charger, so you're ready to go right out of the box.\u003c\/p\u003e","brand":"Barra Airguns","offers":[{"title":"Like New","offer_id":46545107681528,"sku":"4096RB","price":325.0,"currency_code":"USD","in_stock":false},{"title":"Good","offer_id":46545107714296,"sku":"4096RBB","price":275.0,"currency_code":"USD","in_stock":false},{"title":"Acceptable","offer_id":46545107747064,"sku":"4096RBC","price":225.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0284\/2571\/5817\/files\/400e_Black-01.jpg?v=1750977066"},{"product_id":"400e-metal-barrel-kit-405mm","title":"400e Metal Barrel Kit","description":"\u003cp data-end=\"3036\" data-start=\"2708\"\u003eUpgrade the internal barrel of your 400e Gen 1 or 2 Metal rifle with this complete barrel kit, available in your choice of Standard or Precision barrel type. This kit is specifically designed for compatibility with the 400e Gen 1 or 2 Metal, which has a 405mm barrel length.\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-end=\"3476\" data-start=\"3038\"\u003eIf you purchased a \u003cstrong data-end=\"3077\" data-start=\"3057\"\u003e400e Gen 1 Metal\u003c\/strong\u003e, which were sold up until September 2024, you should know that your rifle came with an older version of the Precision barrel. The older design is less consistent than the current Precision barrel kits offered. The Standard or the Precision barrel kit will provide a noticeable upgrade over the stock Gen 1 barrel.\u003c\/p\u003e\n\u003cp data-end=\"3891\" data-start=\"3478\"\u003eIf you purchased your \u003cstrong\u003e400e Gen 2 Metal\u003c\/strong\u003e,\u003cstrong data-end=\"3531\" data-start=\"3516\"\u003e \u003c\/strong\u003ewhich launched in October 2024, your rifle originally came with a Precision barrel if purchased between October 2024 and June 2025. Starting in July 2025, all 400e Gen 2 Metal rifles now come with a Standard barrel. Understanding when you bought your rifle will help determine which barrel you currently have, and which kit is best for you.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-end=\"3891\" data-start=\"3478\"\u003eThe \u003cstrong data-end=\"1338\" data-start=\"1315\"\u003eStandard Barrel Kit\u003c\/strong\u003e offers reliable performance and allows for greater flexibility with BB types. It's less sensitive to slight imperfections in BB shape or finish, making it a great option for casual target shooting and higher-volume use with a broader range of steel BBs.\u003c\/li\u003e\n\u003cli data-end=\"3891\" data-start=\"3478\"\u003eThe \u003cstrong data-end=\"1625\" data-start=\"1601\"\u003ePrecision Barrel Kit\u003c\/strong\u003e is built to tighter tolerances and delivers improved accuracy and consistency. If you're looking to push the limits of the 400e’s capabilities in terms of precision, this is your kit. However, because of its tighter internal specs, we strongly recommend using only \u003ca rel=\"noopener\" title=\"Barra Airguns Precision BBs\" href=\"https:\/\/www.barraairguns.com\/products\/3000-count-zinc-plated-4-5mm-bbs\" target=\"_blank\"\u003eBarra .177 Caliber \/ 4.5mm Zinc-Plated Steel BBs\u003c\/a\u003e. These BBs are precisely machined and polished to perform reliably in the Precision barrel and prevent feeding issues.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"4800\" data-start=\"4535\"\u003eEach kit includes all the necessary components to fully replace the barrel and install it correctly within your 400e Gen 1 or 2 Metal. Whether you're upgrading from Standard to Precision or simply switching to match your ammo and shooting style, this kit gives your rifle a new level of performance and customization.\u003cbr\u003e\u003c\/p\u003e","brand":"Barra Airguns","offers":[{"title":"Standard","offer_id":46684290580728,"sku":"4172","price":25.0,"currency_code":"USD","in_stock":true},{"title":"Precision","offer_id":46684290613496,"sku":"4173","price":25.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0284\/2571\/5817\/files\/4172-1.jpg?v=1757427290"},{"product_id":"400e-polymer-barrel-kit-357mm","title":"400e Polymer Barrel Kit","description":"\u003cp data-end=\"846\" data-start=\"574\"\u003eUpgrade the internal barrel of your 400e Gen 2 Polymer rifle with this complete barrel kit, available in your choice of Standard or Precision barrel type. This kit is specifically designed for compatibility with the 400e Gen 2 Polymer, which uses a 357mm barrel length.\u003c\/p\u003e\n\u003cp data-end=\"1307\" data-start=\"848\"\u003eThe 400e Polymer first launched in October 2024 as part of the Gen 2 release. If you purchased your 400e Polymer between October 2024 and June 2025, your rifle came stock with a Precision barrel. If you purchased it in July 2025 or later, your rifle came with a Standard barrel. This is important to know when selecting the right kit for your goals.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-end=\"1307\" data-start=\"848\"\u003eThe \u003cstrong data-end=\"1338\" data-start=\"1315\"\u003eStandard Barrel Kit\u003c\/strong\u003e offers reliable performance and allows for greater flexibility with BB types. It's less sensitive to slight imperfections in BB shape or finish, making it a great option for casual target shooting and higher-volume use with a broader range of steel BBs.\u003c\/li\u003e\n\u003cli data-end=\"1307\" data-start=\"848\"\u003eThe \u003cstrong data-end=\"1625\" data-start=\"1601\"\u003ePrecision Barrel Kit\u003c\/strong\u003e is built to tighter tolerances and delivers improved accuracy and consistency. If you're looking to push the limits of the 400e’s capabilities in terms of precision, this is your kit. However, because of its tighter internal specs, we strongly recommend using only \u003ca rel=\"noopener\" title=\"Barra Airguns Precision BBs\" href=\"https:\/\/www.barraairguns.com\/products\/3000-count-zinc-plated-4-5mm-bbs\" target=\"_blank\"\u003eBarra .177 Caliber \/ 4.5mm Zinc-Plated Steel BBs\u003c\/a\u003e. These BBs are precisely machined and polished to perform reliably in the Precision barrel and prevent feeding issues.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"2447\" data-start=\"2100\"\u003eEach kit includes all the necessary components to fully replace the barrel and install it correctly within your 400e Gen 2 Polymer. Whether you're upgrading from Standard to Precision or simply switching to match your ammo and shooting style, this kit gives your rifle a new level of performance and customization.\u003c\/p\u003e","brand":"Barra Airguns","offers":[{"title":"Standard","offer_id":46684299198712,"sku":"4174","price":25.0,"currency_code":"USD","in_stock":true},{"title":"Precision","offer_id":46684299231480,"sku":"4175","price":25.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0284\/2571\/5817\/files\/4174-1.jpg?v=1757427100"}],"url":"https:\/\/www.barraairguns.com\/collections\/400e-collection\/collection_air_rifles.oembed","provider":"Barra Airguns","version":"1.0","type":"link"}