Description
The B5 Systems AK Stock in Olive Drab Green gives your AK-pattern rifle the ergonomic refinements it's been missing. Built from durable composite materials with steel hardware, this stock mounts directly to rifles equipped with a factory 5.5mm folding trunnion using the existing pin, making installation straightforward for compatible rifles.
Ergonomics Built for Real Shooting
Where the B5 AK Stock stands out is in how it handles the basic mechanics of shouldering and control. The adjustable length of pull lets you dial in a comfortable fit, which matters more than you'd think when you're running through multiple shooting positions or wearing different gear. The cushioned nonslip buttpad actually stays put when you shoulder the rifle and provides real comfort compared to traditional AK stocks. An optic rail cutout gives you clearance if you're running side-mounted glass, and the aggressive texture on the buttpad keeps things locked in place when conditions aren't ideal.
Sling Mounts That Work With Your Setup
B5 integrated both traditional fixed sling mounts and anti-rotational QD (quick disconnect) mounts so you're not locked into one sling attachment method. The QD mounts use steel hardware that won't strip out under normal use, and the geometry lets you run the stock either way depending on your preference or tactical setup.
Purpose-Built for Compatibility
This is specifically engineered for rifles with the 5.5mm folding trunnion, which is common on more modern AK builds. B5 Systems made these in the USA from composite and steel, so you're getting domestic production quality. Minor fitting may be needed depending on your specific rifle's tolerances, as is typical with AK platforms, but the design handles common variations without drama.
Key Specifications
- Model Number: AKM-1488
- UPC: 814927023161
- Manufacturer: B5 Systems
- Pin Size: 5.5mm
- Material: Composite with steel hardware
- Color: Olive Drab Green (Matte)
- Finish: Matte
- Type: Folding stock
- Compatibility: Factory 5.5mm folding trunnion (AK-pattern rifles)
- Length of Pull: Adjustable/collapsible
- Sling Mounts: QD and fixed mounts included
- Optic Rail Cutout: Yes
- Buttpad: Cushioned nonslip
- Made in: USA
What’s Included
- B5 Systems AK Stock 5.5mm in Olive Drab Green
Frequently Asked Questions
Will this B5 AK Stock fit my rifle?
This stock is designed for rifles with a factory 5.5mm folding trunnion. If your AK has the factory 5.5mm pin-type folding mechanism, you're good. The 5.5mm pin is common on modern AK builds. Don't confuse it with the 4.5mm variant, which uses a different pin size and will not be compatible. If you're unsure about your rifle's trunnion type, check your manual or ask your builder.
Do I need tools or gunsmithing to install this stock?
Installation is straightforward for compatible rifles since the stock mounts using your existing factory pin. That said, due to normal manufacturing tolerances across different AK manufacturers, minor fitting may be necessary. Some rifles install with zero issues, while others might need light filing. It's not a complicated process if you have basic hand tools, but if you're not comfortable doing it yourself, a gunsmith can have this done quickly.
Can I adjust the length of pull on the B5 AK Stock?
Yes. The stock features a collapsible and adjustable length of pull, which is one of its main advantages over traditional fixed AK stocks. You can dial it in for your body size and preferred cheek weld, or adjust it if you're wearing body armor or heavy clothing. The adjustment mechanism is built to be durable and reliable.
What about the optic rail cutout and sling mounts?
The optic rail cutout maintains clearance so you can fold the stock without interference if you're running a side-mounted optic. The stock includes both fixed sling mounts and anti-rotational QD (quick disconnect) sockets with steel hardware, so you can use whatever sling attachment method you prefer or switch between them as needed.







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