Black M4-Style Adjustable AR-15 Carbine Stock Kit with 6-Position Buffer Tube, Armaspec H3 5.6 oz. Sound Mitigation Buffer, End Plate & Castle Nut

Black M4-Style Adjustable AR-15 Carbine Stock Kit with 6-Position Buffer Tube, Armaspec H3 5.6 oz. Sound Mitigation Buffer, End Plate & Castle Nut

This kit bundles an M4-style, 6-position adjustable carbine stock in black with a mil-spec 6-position carbine receiver extension and an Armaspec H3 Gen 3 sound mitigation buffer. It also includes a US Tactical mil-spec receiver end plate and a Davidson Defense mil-spec castle nut.

Key Features

• M4-style, 6-position collapsible carbine stock in matte black
• Reinforced polymer construction, traditional M4 carbine profile, molded cheek-weld surface
• Mil-spec heavy-duty carbine receiver extension, 6061 aluminum, Type II anodized, black
• Armaspec H3 Gen 3 sound mitigation buffer, 5.6 oz., single-stage drop-in design
• Davidson Defense mil-spec castle nut and US Tactical mil-spec receiver end plate included

Stock

The stock follows a traditional M4 carbine profile, molded from reinforced polymer in matte black, with a molded upper cheek-weld surface and a molded, textured rear buttplate. Length of pull adjusts across 6 positions using a spring-loaded position adjustment lever, and the stock includes an integrated rear sling loop.

Buffer Tube and Buffer

The buffer tube is a mil-spec, heavy-duty 6-position carbine receiver extension machined from 6061 aluminum and finished in Type II anodizing, measuring 7.15 inches long with a 1.145-inch outer diameter, a 1-inch inner diameter, and a weight of 3.8 ounces. It's paired with an Armaspec H3 Gen 3 sound mitigation buffer, a single-stage, drop-in recoil component weighing 5.6 ounces with an integrated adjustable spring weight system and a polymer base guide rod, compatible with Forced Reset Trigger (FRT) systems per manufacturer specification.

Follow all manufacturer instructions and safe handling practices.

Ensure compliance with all applicable federal, state, and local laws.