Introducing the Lower Build Kit you didn’t know you needed. The NBS Bare Bones Lower Build Kit. All of our other lower build kits, and many others on the market include a Fire Control Group, Stock and Grip by default, even though many builders opt for an upgraded stock, grip and trigger group. Most of our builds here in the shop include a separately sourced FCG, stock, grip and trigger guard so this kit was born out of necessity and now we’re offering them to all of our customers. Don’t spend your hard earned dollars on parts that’ll end up sitting around collecting dust.
This kit includes true mil-spec hardware so you can be confident that you’re building on a solid foundation.
NBS Mil-Spec Lower Parts Kit Minus FCG & Pistol Grip
The NBS Mil-Spec Lower Parts Kit Minus Fire Control Group and Pistol grip is everything you need and nothing you don’t. This kit, sourced from an OEM supplier of many name brand manufacturers, it is perfect for the builder who expects quality and will be choosing an upgraded grip and trigger group. It consists of high quality mil-spec or better parts. These are precision CNC machined parts, not MIM. Each kit includes:
- Safety Selector, Selector Spring and Detent
- Magazine Catch, Spring and Button
- Trigger Guard and Roll Pin
- Front Pivot Pin
- Rear Take Down Pin
- Two Takedown / Pivot Pin Detents
- Two Takedown / Pivot Pin Detent Springs
- Bolt Catch, Plunger, spring and Roll Pin
- Buffer Retainer Pin and Spring
Backed by the NBS Limited Lifetime Guarantee.
NBS Mil-Spec Carbine Buffer / Receiver Extension Kit
- Mil-Spec Carbine Buffer Tube / Receiver Extension
- 6 Position
- 7075-T6 Aircraft Grade Aluminum
- Hard Anodized
Carbine Buffer Spring
Castle Nut/Receiver Nut
Mil-Spec Receiver End Plate
Carbine Recoil Buffer properly weighted (3oz) and constructed w/ separate counter weights NOT a solid weight.
- Backed by NBS Limited Lifetime Guarantee.