Davidson Defense AR-15 Mil-Spec 6-Position Adjustable FDE Buttstock Kit, Gen3 H3 Sound Mitigation Buffer, Buffer Tube, End Plate & Castle Nut

Davidson Defense Mil-Spec AR-15 Carbine FDE Stock Kit with Armaspec H3 Sound Mitigation Buffer and Mil-Spec End Plate

This is a complete stock kit for AR-15 and M16 platform builds, centered on an M4 style adjustable carbine buttstock in flat dark earth reinforced polymer with a 6-position adjustable length of pull and Mil-Spec carbine receiver extension compatibility. The kit steps up from a standard stock kit with an Armaspec Sound Mitigation Buffer H3 Gen3 single stage drop-in replacement at 5.6 oz., featuring an integrated captured spring with adjustable spring weight and a polymer base guide rod that form a self-contained buffer system. The Mil-Spec heavy-duty AR-15 6-position carbine buffer tube, US Tactical AR-15 and M16 Mil-Spec receiver end plate, and Mil-Spec AR-15 carbine castle nut round out the complete rear hardware package.

Key Features

• M4 style adjustable carbine buttstock, flat dark earth, reinforced polymer
• 6-position adjustable length of pull, Mil-Spec carbine receiver extension compatible
• Spring-loaded adjustment lever locking system
• Textured non-slip buttplate
• Integrated sling loop on stock
• Lightweight low-profile design
• Mil-Spec heavy-duty AR-15 6-position carbine buffer tube
• Armaspec Sound Mitigation Buffer H3 Gen3, 5.6 oz., single stage drop-in replacement
• Integrated captured spring with adjustable spring weight
• Polymer base guide rod
• Compatible with forced reset triggers
• US Tactical AR-15 and M16 Mil-Spec receiver end plate
• Mil-Spec AR-15 carbine castle nut

Perfect For

• AR-15 and M16 builders sourcing a complete FDE rear hardware group with a self-contained sound mitigation buffer system in one kit
• Shooters replacing standard rear hardware with a more capable matched set that reduces felt recoil and spring noise
• Builders running forced reset triggers who need a compatible buffer system covered alongside their stock and rear hardware

Stock and Buffer System

The M4 style adjustable carbine buttstock in flat dark earth reinforced polymer fits directly onto Mil-Spec carbine receiver extensions and offers a 6-position adjustable length of pull locked in place by a spring-loaded adjustment lever. The low-profile and lightweight design keeps the rear end trim, with a textured non-slip buttplate for consistent shoulder contact and an integrated sling loop built into the stock body. The Mil-Spec heavy-duty 6-position carbine buffer tube pairs directly with the stock and accepts the Armaspec Sound Mitigation Buffer H3 Gen3 as a self-contained drop-in replacement unit. The H3 Gen3 brings a 5.6 oz. buffer weight into a single stage design with an integrated captured spring that includes adjustable spring weight and a polymer base guide rod, eliminating the separate buffer spring from the equation and combining the buffer and spring into one cohesive unit. The captured spring design reduces the metal-on-metal spring noise common in standard buffer and spring setups, and the H3 weight and integrated spring combination addresses felt recoil management within the buffer tube. The H3 Gen3 is compatible with forced reset triggers, making it a relevant choice for builders running FRT setups who need a buffer system that works with the faster cycling demands of that trigger type. The US Tactical AR-15 and M16 Mil-Spec receiver end plate and Mil-Spec AR-15 carbine castle nut lock the buffer tube down at the rear of the lower receiver and complete the rear hardware group.

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