The BCM® Intermediate Buffer System (A5) Kit, uses an intermediate length BCM receiver extension machined from 7075T6 Aluminum, A M16 rifle action spring, and a Vltor A5 buffer.
These components are intended to work as an improved buffer system that can be used on rifle with carbine, mid-length, and rifle length gas systems.
Please note, the components in this system are NOT intended to be mixed with buffer, action springs, and receiver extensions of a traditional M4 carbine buffer system.
The BCM Intermediate Buffer System (A5) Kit includes:
- Vltor A5H0 Buffer (3.8oz)
- BCM Intermediate Receiver Extension Tube
- BCM QD End Plate
- Milspec Castle Nut
- Rifle Action Spring