B5 Systems AK Stock 4.5mm - Plum
Not Yet Rated | Write the First Review SKU: 222-B5 -AKM-1496
UPC: 814927023246
MFG#: AKM-1496

B5 Systems AK Stock 4.5mm (Plum)

Upgrade your AK rifle with the B5 Systems AK Stock 4.5mm in Plum, a precision-built, American-made upgrade designed for shooters who value comfort, control, and durability. This stock delivers a rock-solid feel, superior ergonomics, and reliable compatibility with the 4.5mm folding trunnion system found on modern AK platforms.

The iconic plum finish pays homage to classic Eastern Bloc design while offering the rugged performance demanded by today’s shooters. Built from advanced composite materials and reinforced steel hardware, this stock provides the confidence and adjustability serious rifle owners expect.

Precision Fit for 4.5mm Folding Trunnions

Engineered as a true drop-in replacement, this stock mounts directly to your factory 4.5mm pin system with no need for permanent modification. It’s designed to maintain the original AK profile while enhancing comfort and functionality for modern use.

Whether you’re building a tactical AK setup or refining a classic rifle, this B5 stock ensures consistent alignment, reduced recoil fatigue, and stable shoulder welds shot after shot.

Key Features

• 5-Position Adjustable Length of Pull – fine-tune your rifle for your shooting stance, plate carrier, or optic setup.

• Ergonomic Cheek Weld for improved comfort and target reacquisition.

• QD and Fixed Sling Mounts for flexible carry options on either side.

• Cushioned Non-Slip Buttpad that reduces recoil and improves stability.

• Optic Rail Cutout that maintains compatibility with side-mounted optics.

• Durable Composite Body with Steel Reinforcements built for years of field use.

• Proudly Made in the USA, supporting American craftsmanship and defense manufacturing excellence.

Why Choose the B5 AK Stock (Plum)

B5 Systems has earned its reputation for delivering battle-proven gear trusted by military, law enforcement, and firearm enthusiasts alike. The AK Stock 4.5mm continues that tradition by combining practical design with precision manufacturing.

Unlike imported copies or low-grade polymer options, the B5 AK Stock offers consistent fitment, tighter tolerances, and true Mil-Spec durability. Every unit is manufactured and tested in the USA to ensure reliable performance in all conditions.

Compatibility

• Fits rifles with 4.5mm folding trunnions (Arsenal, SLR, PSA, and similar).

• Designed for AK-47 and AK-74 variants utilizing the 4.5mm rear trunnion.

• No permanent modification required.

• Available in Plum, Black, and OD Green finishes.

Specifications

Installation Overview

1. Remove your existing folding stock.

2. Align the B5 AK Stock 4.5mm with the trunnion pin and insert securely.

3. Check lockup and movement through all five adjustment positions.

4. Verify clearance for optics or accessories.

Most installations take under 15 minutes using standard tools.

Customer Trust Points

• Made in USA – every part manufactured and assembled domestically.

• Lifetime Warranty – we stand behind our craftsmanship.

• Tested for Fit and Function across major AK platforms.

• Backed by the B5 Systems Legacy – trusted by professionals worldwide.

Frequently Asked Questions (FAQ)

Q: Will this stock fit my PSA AK-E or Arsenal SAM7SF?
A: Yes. The B5 Systems AK Stock 4.5mm is fully compatible with rifles that feature a 4.5mm folding trunnion such as PSA, Arsenal, and SLR models.

Q: What makes the Plum version unique?
A: The Plum finish is inspired by classic Soviet-era rifles, blending vintage aesthetics with modern American materials for the perfect mix of heritage and performance.

Q: Do I need to modify my rifle to install this?
A: No. It’s designed as a drop-in replacement. Only minor fitting may be needed depending on trunnion tolerances.

Q: Is the stock adjustable for length of pull?
A: Yes. It features a 5-position adjustment system allowing you to personalize your rifle’s setup for comfort and control.

Q: Is it legal to use on imported rifles?
A: Yes. It’s a U.S.-made part that can help meet 922(r) compliance requirements.

Order Yours Today

Enhance your AK’s performance and comfort with the B5 Systems AK Stock 4.5mm in Plum. Proudly made in the USA, engineered for precision, and built to last — this is the upgrade your rifle deserves.