Finish Your Lower Kit (Carbine): SOPMOD Style Collapsible Stock + AR-15 Carbine Buffer Tube Kit + Complete Lower Parts Kit

Finish Your Lower Kit (Carbine): SOPMOD Style Collapsible Stock + AR-15 Carbine Buffer Tube Kit + Complete Lower Parts Kit

Complete your AR-15 lower receiver with a premium combination of essential components designed for reliability, comfort, and versatility. This build kit combines the SOPMOD Style Collapsible Stock, Complete Mil-Spec Lower Parts Kit, and a Heavy Duty Mil-Spec Buffer Tube Assembly into one convenient package. Featuring adjustable length of pull, integrated storage compartments, and a complete fire control group, this kit provides everything needed to outfit a lower receiver for dependable performance. Whether you're building a rifle from the ground up, upgrading an existing platform, or replacing worn components, this package delivers the functionality and durability serious shooters demand.

Key Features

• SOPMOD-style collapsible stock with integrated storage compartments
• Complete Mil-Spec lower parts kit with fire control group and A2 grip
• Heavy-duty 6061 T6 aluminum 6-position Mil-Spec buffer tube assembly
• Integrated QD sling mounting points on the stock
• Adjustable length of pull for improved fit and shooting comfort
• Compatible with Mil-Spec AR-15 lower receivers and carbine stock systems

Perfect For

• AR-15 builders seeking a complete lower receiver finishing kit
• Shooters upgrading to a SOPMOD-style stock with enhanced storage and sling options
• First-time builders wanting compatible components in one package
• Tactical and recreational shooters looking for adjustable ergonomics and reliable performance
• Rifle owners replacing worn stock, buffer, or lower receiver components

SOPMOD Stock Features

The SOPMOD Style Stock combines practical functionality with modern ergonomics. Constructed from durable nylon-reinforced polymer, it delivers excellent strength while remaining lightweight for comfortable all-day use. Integrated QD sling mounting points allow rapid sling attachment and removal, while onboard storage compartments provide convenient space for batteries, spare parts, or small maintenance items. Its adjustable design allows shooters to customize length of pull for improved comfort and control across various shooting positions.

Complete Lower Receiver Foundation

The included Complete Mil-Spec Lower Parts Kit and Heavy Duty Buffer Tube Assembly provide the core components necessary to complete a lower receiver build. The lower parts kit includes a complete fire control group and A2 pistol grip, while the buffer assembly features a Mil-Spec 6-position buffer tube machined from durable 6061 T6 aluminum. Combined with the included recoil spring, 3 oz buffer, castle nut, and end plate, this package delivers dependable operation and broad compatibility with Mil-Spec AR-15 platforms.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws. Verify compatibility of all components before assembly. Mil-spec buffer tube compatibility only—will NOT fit commercial-spec configurations. Proper installation and secure assembly required for safe operation.