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CMMG BBL 300BLK 16.1" MT 4140CM SBN
Product Details
Perfect for building your custom AR15 upper group. Comes with properly installed M4 barrel extension. All barrel sub-assemblies are properly head spaced.
Specifications
UPC
815835016238
Manufacturer
CMMG
Manufacturer Part Number
30D120A
Barrel Length
16.1"
Caliber/Gauge
.300 AAC Blackout
Length
16.10"
Model
Barrel Sub-Assembly
Product Type
Barrel
Rate of Twist
1:7"
SKU
RSR|CMMG30D120A
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Questions & Answers
Need help with CMMG BBL 300BLK 16.1″ MT 4140CM SBN? Contact our team for fitment questions, transfer requirements, stock checks, and product guidance.
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Our team can help with compatibility, legal transfer details, shipping restrictions, and availability questions before checkout.
Documentation & Support
Looking for manuals, setup help, or warranty details? Use the resources below or contact us directly for assistance.
All firearms are sold in compliance with federal, state, and local laws. Buyers must meet all legal requirements for firearm ownership in their jurisdiction.
Federal Requirements
Must be 18+ for long guns and 21+ for handguns
Valid government-issued photo ID required
Background check (NICS) required for all firearm purchases
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