Micro AR-15 Pistol Buffer System for 5.56 & 9MM – 5.75" Tube, Color Options

Buffer Tubes / Buffers / Springs

AR-15 Micro Pistol Buffer System Kit – 5.56 & 9MM Compatible, 5.75" Tube | Mil-Spec, Color Options

Upgrade your compact AR pistol build with the AR-15 Micro Pistol Buffer System, engineered for compatibility with both 5.56 NATO and 9MM calibers. This low-profile, mil-spec micro buffer setup is ideal for minimalist builds, offering reliability without sacrificing performance.

Constructed from durable T6 aluminum, this complete system features a micro 1.4″ buffer weighing just 1.8 oz, a flat micro recoil spring, and a 5.75″ buffer tube with an anodized finish. The included QD sling end plate and extreme duty castle nut ensure secure installation and flexible sling mounting options.

Perfect for short barrel builds or PDW-style AR pistols, this system is made in the USA and built for rugged use.

Kit Includes:

• Micro Pistol Buffer Tube – 5.75″ length

• Micro Flat Spring – compact and durable

• Micro 1.4″ Buffer – 1.8 oz

• QD One Point Sling End Plate

• Extreme Duty Castle Nut

• Complete Micro Pistol System

• Available in anodized black or custom Cerakote colors

Specifications:

• Caliber Compatibility: 5.56 NATO / 9MM

• Tube Material: T6 Aluminum

• Tube Length: 5.75″

• Buffer Weight: 1.8 oz

• Total Kit Weight: 9 oz

• Finish: Anodized black (Color options available)

• Made in the USA

Looking for a matching upper? Check out the AR-15 5.56 NATO 5" Pistol Upper Assembly with 4" M-LOK Handguard.