The Intermediate Buffer System takes advantage of an improved design for use on the AR-15 platform. This system aids in lowering bolt carrier velocity, reduces cyclic rate, and softens felt recoil, increasing overall reliability and performance. Machined from 7075-T6 aluminum, the intermediate length receiver extension includes an M16 rifle action spring and VLTOR A5 buffer.

NOTE: This system is not interchangeable with carbine length components.


  • 3.8 oz VLTOR A5H0 buffer
  • BCM intermediate receiver extension
  • BCM QD end plate
  • MIL-SPEC castle nut
  • Rifle action spring
  • 7075-T6 aluminum
  • Type III Class 2 hardcoat anodized

MODEL BCM A5 Intermediate Buffer System
TITLE BCM A5 Intermediate Buffer System

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