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Bravo Company Manufacturing

BCM Standard 12.5" Carbine 5.56 Barrel

BCM's button-rifled 12.5" carbine-gas barrel for compact 5.56 SBR and pistol builds.

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Quick Specs

Price
$279
Weight
1 lb 7 oz
Brand
Bravo Company Manufacturing
Category
barrel

Features

  • 12.5" length, Government profile
  • Carbine gas system
  • 5.56 NATO chamber, 1:7 twist
  • 11595E CMV steel, chrome-lined bore and chamber
  • .750" gas journal
  • M4 feed ramps, HP and MPI tested

Compatibility Tags

family: ar-patternbarrel: compactthread: 1/2x28

Overview

BCM's Standard 12.5" Carbine barrel fills the compact 5.56 slot between CQB 10.3/11.5" barrels and pin-and-weld 13.7/14.5" builds. The barrel uses 11595E CMV steel, a chrome-lined bore and chamber, manganese phosphate exterior finish, M4 feed ramps, and BCM's HP/MPI inspection process.

The 12.5" length gives a short gun a little more dwell time and velocity than the shortest CQB barrels while keeping the front end compact. The carbine gas system and .750" journal accept common low-profile gas blocks, and the barrel is light enough for a general-purpose SBR or pistol that still needs reliable 5.56 performance.

Key Features

  • 12.5" Government-profile 5.56 NATO barrel
  • 11595E CMV steel with chrome-lined bore and chamber
  • Carbine gas system with .750" gas journal
  • 1:7 twist for common 55 to 77 grain 5.56 loads
  • Manganese phosphate exterior finish
  • M4 feed ramps
  • HP proof tested and MPI inspected

Pros

  • +More dwell and velocity than shorter 10.3" and 11.5" barrels
  • +Chrome lining and BCM inspection process suit hard-use compact builds
  • +Common .750" gas journal keeps gas block selection simple
  • +Lower cost than BCM's BFH cold hammer forged barrel line

Cons

  • Sub-16" barrel: assemble it as a registered SBR or a pistol, not a standard rifle
  • Carbine gas is sharper than mid-length gas on longer barrels
  • Button-rifled Standard line is less premium than BCM BFH
  • Government profile carries more front-end weight than pencil contours

Detailed Specifications

Length
12.5"
profile
Government
chamber
5.56 NATO
twist
1:7
Material
11595E CMV
construction
Button rifled
finish
Chrome-lined bore and chamber, manganese phosphate exterior
gasSystem
Carbine
gasJournal
.750"
feedRamps
M4
testing
HP proof, MPI
weight
Approximately 1 lb 7 oz
sku
BCM-BRL-s-12-STD
madeIn
USA

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