FDE M4-Style Adjustable AR-15 Carbine Stock Kit with 6-Position Buffer Tube, 3 oz. Buffer, Recoil Spring & Skeletonized Straight Trigger Shoe 3.5 lb Lower Parts Kit

FDE M4-Style Adjustable AR-15 Carbine Stock Kit with 6-Position Buffer Tube, 3 oz. Buffer, Recoil Spring & Skeletonized Straight Trigger Shoe 3.5 lb Lower Parts Kit

This kit bundles an M4-style, 6-position adjustable carbine stock in FDE with a complete buffer system and a Davidson Defense Gen 2 Match Grade Lower Parts Kit featuring a 3.5-pound single-stage skeletonized straight trigger, giving builders the rear stock, buffer components, and an upgraded trigger group needed to finish a lower receiver.

Key Features

• M4-style, 6-position collapsible carbine stock in FDE
• Reinforced polymer construction, traditional M4 carbine profile, molded cheek-weld surface
• Davidson Defense mil-spec heavy-duty carbine buffer tube, 6061 aluminum, Type II anodized, black
• 3 oz. standard AR-15 carbine buffer and USA-made recoil spring
• Davidson Defense Gen 2 Match Grade Lower Parts Kit, 31 pieces
• Skeletonized straight trigger shoe, single stage, 3.5 lb. pull weight, steel with Black Oxide finish
• Mil-spec A2 pistol grip in black included

Stock

The stock follows a traditional M4 carbine profile, molded from reinforced polymer in FDE, with a molded upper cheek-weld surface and a molded, textured rear buttplate. Length of pull adjusts based on buffer tube position using a spring-loaded position adjustment lever, and the stock includes an integrated rear sling loop, built for mil-spec carbine receiver extensions.

Buffer Tube and Buffer

The buffer tube is a Davidson Defense mil-spec, heavy-duty 6-position carbine buffer tube 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 a 3-ounce standard AR-15 carbine recoil buffer built with a 6061 aluminum body and steel weights, along with a USA-made standard AR-15 carbine recoil spring. A Davidson Defense mil-spec castle nut in black and a US Tactical mil-spec receiver end plate complete the receiver extension hardware.

Lower Parts Kit

The included Davidson Defense Gen 2 Match Grade Lower Parts Kit is a 31-piece set built around a skeletonized, straight trigger shoe machined from steel and finished in Black Oxide, running as a single-stage trigger with a 3.5-pound pull weight. The fire control group includes the trigger, hammer, and disconnector, along with the safety selector, bolt catch, magazine catch, and trigger guard. Pivot and takedown pins, along with the full set of springs and detents, round out the kit, and a mil-spec A2 pistol grip in black is included.

Follow all manufacturer instructions and safe handling practices.

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