CMMG 12.5" .300 Black 1:7 Pistol Length Multi-Role AR-15 Barrel
Click to see full view
CMMG
Overview
The CMMG 12.5" .300 Black 1:7 Pistol Length Multi-Role AR-15 Barrel is a barrel. Compare prices from multiple merchants and find the best deal.
Specifications
Build history on GunPartPicker
Builders on GunPartPicker first added the CMMG 12.5" .300 Black 1:7 Pistol Length Multi-Role AR-15 Barrel to a build in August 2026.
It was hard to find in September 2026, in stock on only 5 of the 22 days we checked, and today both retailers we track have it in stock. Prices barely moved in September 2026, holding around $179.95, so there haven't been real sales lately. Buying today, the lowest price is $179.95 at AR15 Discounts, which matches the best price we saw in September.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
Not sure which barrel to pick?
We ranked every barrel by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Barrel Length & Brand Report →Check it against the live catalog:
Frequently Built With
Popular alongside barrels on GunPartPicker
Bravo Company Mfg Upper Receiver Assembly w/ Laser T-Markings, Hard Coated Anodized - 4-UR-M4
Aero Precision Stripped M4E1 AR-15 Lower Receiver - Special Edition - Freedom
Aero Precision AR-15 Breach Charging Handle Ambidextrous Small Levers
Maximize Your AR-15's Potential with Tacfire's 15" ACE M-LOK Handguard - Black Excellence - HG20-15
Bravo Company M16 Bolt Carrier Group Black
Geissele Automatics AR-15 SSA-E X Lightning Bow Trigger
No reviews yet. Be the first to review this product!