BCM Carbine Receiver Extension Buffer Tube
Best professional grade component for serious rifle builders.
A precision-machined component that provides a stable, adjustable foundation for carbine stocks. It eliminates stock wobble and ensures smooth, reliable cycling through tight tolerances and internal lubrication.
$38.75
at
OpticsPlanet
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Who it's for
- Shooters requiring a rugged component for heavy-duty or professional use
- Owners wanting guaranteed compatibility with standard mil-spec buttstocks
- Users looking for a long-lasting finish that resists wear and weather
Who should skip it
- Budget-conscious builders looking for the lowest possible entry price
- Builders who already own commercial-diameter stocks and want to reuse them
- Enthusiasts seeking advanced technical features beyond standard military requirements
Performance breakdown
Tolerance Precision
Tight machining ensures virtually zero stock wobble during rapid fire.
Cycling Smoothness
Dry film lubricant significantly reduces friction for consistent, reliable bolt carrier movement.
Build Durability
Mil-spec aluminum construction withstands heavy recoil and harsh operational environments.
Installation Ease
Standard dimensions make integration with existing castle nuts and plates seamless.
Adjustment Versatility
Six positions offer a standard, reliable range for most shooter preferences.
Component Compatibility
Guaranteed fitment with all standard mil-spec carbine stocks and accessories.
Key Specs
Material
7075T6 Aluminum
Finish
Hard Coat Anodized per Mil-A-8625F, Type III, Class 2
Compatibility
AR-15, M16, M4
Positions
6-position adjustable
Specification
Mil-Spec dimensions
Internal Treatment
Dry film lubricant
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