B5 Systems
Shop B5 Systems at Arms East. U.S. shipping and Canadian PAL export available.
B5 Systems — AR15 Parts (22)
- AR15 Stocks, Forends, Forearms Add to cart
AR-15 ENHANCED SOPMOD STOCK COLLAPSIBLE MIL-SPEC MULTI-CAM
$108.00Low Stock - AR15 Stocks, Forends, Forearms Add to cart
B5 Systems Bravo 10.7 inch delivers the trusted SOPMOD cheekweld and quick-disconnect sling mount in a lighter, more compact mil-spec design made in the USA. This refined collapsible stock eliminates unnecessary bulk while retaining strength and adding an angled rear for faster, more consistent shoulder positioning.
$57.95In Stock - AR15 Stocks, Forends, Forearms Add to cart
B5 Systems Bravo 9.8 Inch collapsible stock delivers a lighter, more compact, and stronger platform than the Enhanced SOPMOD while retaining proven features like the cheekweld and quick disconnect sling mount. Proudly made in the USA with milspec materials and finishes.
$57.95In Stock - AR15 Stocks, Forends, Forearms Add to cart
B5 Systems Bravo delivers a lighter, stronger evolution of their SOPMOD design with angled geometry for faster shouldering—all built from mil-spec materials and made in the USA. It retains the SOPMOD cheekweld and quick disconnect sling mount while eliminating storage for a slimmer profile.
$57.95In Stock - AR15 Stocks, Forends, Forearms Add to cart
B5 Systems Bravo-C AR Stock Mil-Spec Size Black
$53.20Low Stock - AR15 Stocks, Forends, Forearms Add to cart
B5 Systems’ classic CAR15 stock delivers authentic retro styling with modern Mil-Spec polymer construction, sharp checkering, and practical features like a fixed sling loop and cleaning rod egress channel.
$47.50In Stock - AR15 Stocks, Forends, Forearms Add to cart
B5 Systems CAR15 buttstock combines authentic retro design with modern Mil-Spec durability, featuring classic polymer construction, sharp checkering, and a fixed sling loop for reliable performance.
$47.50In Stock
B5 Systems — AR Lower Parts (17)
- AR Braces/Stocks Add to cart
B5 Systems Sierra K delivers a lightweight, compact stock engineered specifically for PDW and compact weapon systems with ambidextrous QD sling mounts and snag-free adjustment. Its reduced profile and slim cheek design maximize maneuverability while the durable Flat Dark Earth finish resists wear.
$57.95In Stock - AR Braces/Stocks Add to cart
B5 Systems Sierra K Stock delivers compact, mil-spec durability with snag-free adjustment and integrated QD mounts for PDW and short-barreled platforms.
$57.95In Stock - AR Buffer System Add to cart
B5 Systems Sierra K Extension Kit delivers a complete AR-15 receiver extension upgrade with buffer and spring included for immediate installation.
$128.25In Stock - AR Grips Add to cart
B5 Systems Type 22 P-Grip features an increased vertical grip angle and extended tang for improved ergonomics and proper trigger index. Made in the USA.
$27.55Low Stock
B5 Systems — Rifle Parts (8)
- Rifle Stocks Add to cart
B5 Systems CPS Cheekpiece adds 3/8″ of height to enhance your sight picture on any B5 collapsible stock. This black cheekpiece mounts securely via undercut adjustment for a custom fit.
$19.95Low Stock - Rifle Stocks Add to cart
B5 Systems Modular Picatinny Stock combines adjustable length of pull with a spring-assist cheekpiece and left-side folding steel hinge for versatile shooter comfort. Made in the USA with durable composite materials and integrated steel hardware, it delivers reliable performance for tactical and precision applications.
$190.00In Stock - Rifle Stocks Add to cart
B5 Systems Modular Picatinny Stock MPS1554 features a spring-assist cheekpiece and integral left-side folding steel hinge for versatile rifle configurations. Built from durable composite and steel with ambidextrous sling mounts and nonslip buttpad.
$190.00In Stock - Rifle Stocks Add to cart
B5 Systems Modular Platform Stock in OD Green features a spring-assist cheekpiece and integral left-side folding steel hinge for superior ergonomics and compact storage. Adjustable length of pull and ambidextrous sling mounts deliver customizable performance on any 1913 Picatinny-railed platform.
$190.00In Stock - Rifle Stocks Add to cart
B5 Systems Modular Picatinny Stock delivers tool-free adjustment and integrated Picatinny rails for maximum AR platform customization. Compact 13.2″ design balances control with maneuverability.
$190.00In Stock
B5 Systems — AK Parts (4)
- AK Stocks, Forends, Forearms Add to cart
B5 Systems’ Made-in-USA AK handguard delivers aggressive ergonomics and M-LOK accessory mounting for standard AKM pattern receivers. Features integral stainless steel heat shield and durable composite construction.
$38.00In Stock - AK Stocks, Forends, Forearms Add to cart
B5 Systems AK Stock 4.5 Inch delivers AR-15 platform compatibility for AK-pattern rifles in a compact 4.5-inch design. This black accessory stock is engineered for shooters seeking modern ergonomics on traditional platforms.
$118.75In Stock - AK Stocks, Forends, Forearms Add to cart
B5 Systems AK Stock 5.5mm Plum offers drop-in compatibility with factory 5.5mm folding stocks while delivering improved ergonomics, adjustable length of pull, and QD/fixed sling mounts—all proudly made in the USA.
$118.75Low Stock
B5 Systems — AR Upper Parts (4)
- AR Foregrip/Handstop Add to cart
B5 Systems Vertical M-LOK Grip delivers ergonomic optimization for improved weapon handling with aggressive four-sided texture and included installation hardware.
$19.00In Stock - AR Handguards Add to cart
B5 CAR15 Handguard delivers classic 6-hole design with a lightweight, slim profile using Mil-Spec materials. Drop-in replacement handguard with heat shield for retro rifle setups.
$23.75In Stock - AR Handguards Add to cart
B5 Systems M-LOK Carbine handguard delivers improved ergonomics with a slim profile and built-in handstop, featuring six sides of M-LOK slots for flexible accessory mounting. This 7 Inch OD Green two-piece drop-in design directly replaces standard clamshell handguards.
Original price was: $27.55.$25.00Current price is: $25.00. SALEIn Stock - AR Handguards Add to cart
B5 Systems’ slim M-LOK Carbine handguard drops in to replace your standard clamshell with improved ergonomics and six sides of accessory mounting. Built-in handstop and black finish.
$27.55In Stock
B5 Systems — Ammunition (2)
- Ammunition Add to cart
B5 Systems P-Grip Type 23 delivers superior ergonomics with increased grip angle and extended tang for optimal trigger control on AR15s. Drop-in compatible, made in the USA, finished in woodland camo.
$27.55Low Stock 
B5 Systems ATG1092 Bravo Drop-In Curved Black Anodized Aluminum For AR-Platform
B5 SystemsAdd to cartAmmunition Add to cartB5 Systems Bravo trigger guard features an enlarged profile for reliable gloved operation in cold weather and tactical scenarios while maintaining the original swing-down function. Made in the USA.
$19.00In Stock
B5 Systems — Gun Parts (1)
- Other Gun Accessories & Parts Add to cart
B5 Systems’ 7 Inch M-LOK Rail Cover in Flat Dark Earth features soft no-slip material with ribbed texturing for superior grip and heat resistance on most machined rails and polymer handguards.
$17.10In Stock
