BCM MK2 Receiver Extension
Best premium buffer tube for shooters seeking improved recoil management.
A robust, mil-spec foundation for rifle stock systems, built from high-strength aluminum for maximum durability. This component offers precise compatibility across multiple platforms but requires a specific buffer and spring system to operate, making it an essential upgrade for those building or maintaining a high-performance rifle.
$33.95
at
Bravo Company USA
More MK2 options
Who it's for
- Shooters seeking a flatter shooting rifle with less felt recoil
- Duty users requiring maximum functional consistency in harsh conditions
- Quality-conscious builders wanting components that exceed mil-spec standards
Who should skip it
- Budget builders hoping to reuse their existing standard buffer components
- Small-statured shooters needing the shortest possible stock configuration
- Price-sensitive consumers looking for the most affordable upgrade path
Performance breakdown
Material Integrity
7075T6 aluminum offers superior strength-to-weight ratios for demanding field environments.
Finish Durability
Mil-spec hard coat anodizing resists scratches and corrosion through heavy use.
Platform Compatibility
Broad compatibility across standard platforms, though requires specific proprietary buffer components.
Installation Complexity
Requires specific buffer and spring knowledge, making it less beginner-friendly.
Recoil Management
The MK2 system design significantly smooths out the rifle's cycling impulse.
Manufacturing Precision
Tight tolerances ensure a wobble-free fit with most standard rifle stocks.
Key Specs
Material
7075T6 Aluminum
Compatibility
AR15, M16, M4, AR-10
Finish
Hard Coat Anodized per Mil-A-8625F, Type III, Class 2
Requirement
Requires M16 rifle action spring and specific MK2 buffer
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