FDE M4-Style Adjustable AR-15 9mm Carbine Stock Kit with 6-Position Buffer Tube, 5.7 oz. Buffer, Recoil Spring, End Plate & Castle Nut

FDE M4-Style Adjustable AR-15 9mm Carbine Stock Kit with 6 Position Buffer Tube, 5.7 oz Buffer, Recoil Spring, End Plate, and Castle Nut

This FDE M4-Style Adjustable AR-15 9mm Carbine Stock Kit covers the stock, buffer tube, buffer, recoil spring, and rear hardware for 9mm AR pattern carbine and PCC builds. It pairs an FDE M4-style 6 position collapsible buttstock with a black mil-spec 6 position carbine buffer tube. A 5.7 oz solid steel AR-15 9mm carbine buffer and a standard AR-15 carbine recoil spring round out the buffer components. A US Tactical mil-spec receiver end plate and a Davidson Defense mil-spec carbine castle nut complete the rear hardware set.

Key Features

• FDE M4-style collapsible carbine buttstock
• 6 position adjustable stock
• Reinforced polymer stock
• Integrated rear sling loop
• Textured rear buttplate
• Mil-spec 6 position carbine receiver extension, 6061 aluminum, black Type II anodized
• 1.145 inch outer diameter, 1 inch inner diameter, 7.15 inch length, 3.8 oz tube weight
• AR-15 9mm carbine recoil buffer, solid steel, 5.7 oz
• Standard AR-15 carbine recoil spring, made in the USA
• US Tactical AR-15 M16 mil-spec receiver end plate
• Davidson Defense AR-15 mil-spec carbine castle nut, black
• Compatible with AR-15, M16, and M4 style carbine platforms using mil-spec carbine buffer systems

Perfect For

• 9mm AR carbine and PCC builders who want the stock, buffer system, and rear hardware together in one purchase
• Builders who want an FDE stock to match an earth tone 9mm build
• AR-9 owners replacing a worn buffer system and stock at the same time

FDE M4-Style 6 Position Carbine Stock

The stock is a traditional M4-style collapsible carbine buttstock in FDE. It is made from reinforced polymer with 6 adjustment positions. An integrated rear sling loop gives the stock a built in sling point. A textured rear buttplate finishes off the back of the stock.

Mil-Spec 6 Position Carbine Buffer Tube

The buffer tube is a mil-spec 6 position carbine receiver extension made from 6061 aluminum. It carries a black Type II anodized finish. The tube measures 1.145 inches outer diameter, 1 inch inner diameter, and 7.15 inches long, and weighs 3.8 oz. Its mil-spec diameter matches the included M4-style stock.

9mm Carbine Buffer and Recoil Spring

The kit includes an AR-15 9mm carbine recoil buffer made from solid steel. The buffer weighs 5.7 oz and is matched to 9mm carbine builds. A standard AR-15 carbine recoil spring made in the USA is included alongside it. The buffer and spring make up the core buffer components of the kit.

US Tactical End Plate and Davidson Defense Castle Nut

The kit includes a US Tactical AR-15 M16 mil-spec receiver end plate. A Davidson Defense AR-15 mil-spec carbine castle nut in black is also included. These two parts make up the rear hardware at the back of the lower receiver. With them, the kit covers everything from the stock to the rear hardware in one box.

Follow safe handling and manufacturer instructions.

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

Verify compatibility with your lower receiver and bolt carrier group before use.

Inspect all components before use.