Details
Finish Your Build Kit (Carbine): M4 Style Stock + Carbine Buffer Tube Kit + Complete Lower Parts Kit + Mil-Spec Bolt Carrier Group & Charging Handle
Finish your AR-15 build with a comprehensive component package that delivers everything needed to complete both your lower receiver and upper operating system. This kit combines a durable six-position M4-style stock, complete Mil-Spec lower parts kit, carbine buffer tube assembly, premium nitride bolt carrier group, and Mil-Spec charging handle into one convenient bundle. Built around reliable, Mil-Spec compatible components, this package is ideal for new rifle builds, upgrades, or replacing worn parts. The included bolt carrier group is compatible with multiple popular AR-15 calibers, making this an excellent choice for versatile rifle configurations. Whether you're assembling your first rifle or adding dependable components to your next project, this Finish Your Build Kit provides a solid foundation for long-term performance.
Key Features
- Complete AR-15 Finish Your Build kit with lower completion and upper operating components
- M4-style six-position adjustable stock fits standard Mil-Spec carbine buffer tubes
- Complete Mil-Spec lower parts kit with fire control group and A2 pistol grip
- Heavy-duty carbine buffer tube kit with 3 oz recoil buffer and recoil spring
- Premium nitride bolt carrier group featuring a 9310 steel bolt and 8620 carrier
- Compatible with 5.56 NATO, .223 Wylde, .300 Blackout, and .350 Legend
- Includes Mil-Spec charging handle with standard A2 latch
- Mil-Spec compatible components for dependable installation and operation
Perfect For
- Completing stripped AR-15 lower receivers
- New AR-15 rifle builds
- Multi-caliber AR-15 platforms
- Replacing worn or damaged factory components
- Home defense, recreational, and range rifles
- Builders seeking dependable Mil-Spec compatibility
Premium Bolt Carrier Group
At the heart of this kit is a premium complete bolt carrier group built around a durable 9310 alloy steel bolt and an 8620 steel carrier, both protected by a corrosion-resistant nitride finish. Precision machining, proper gas key staking, forward assist serrations, and a full-auto profile provide smooth cycling and dependable reliability. Compatible with 5.56 NATO, .223 Wylde, .300 Blackout, and .350 Legend, this versatile BCG offers excellent durability for a wide variety of AR-15 configurations.
Complete Lower Assembly Package
Everything needed to complete the lower receiver is included in one convenient package. The six-position M4-style stock installs onto the included Mil-Spec carbine buffer tube assembly, while the complete lower parts kit provides the fire control group, A2 grip, magazine catch assembly, bolt catch assembly, trigger guard, takedown and pivot pins, safety selector, springs, detents, and installation hardware. A Mil-Spec charging handle rounds out the package, providing dependable manual operation for virtually any standard AR-15 upper receiver.
Follow safe handling and manufacturer instructions. Ensure compliance with all applicable laws. Lower receiver not included. Verify upper receiver compatibility before assembly.
