Right To Bear Has Live Inventory: If You Can Add It to the Cart, It's Yours!Fast Shipping GUARANTEED on In-Stock Products!

  Home > Barrels >

CMMG 12.5" Barrel SBN Multi Role (300 BLACKOUT)
CMMG 12.5" Barrel SBN Multi Role  (300 BLACKOUT)

MSRP $179.95
SALE PRICE: $139.99
Savings: $39.96

Stock Status :(Out of Stock)
Product Code: 30D8A0A


CMMG 12.5" Barrel SBN (300 BLACKOUT)

  • Length: 12.5", 1:7" Twist
  • Chamber: 300 BLK
  • Profile: Multi Role Profile
  • Material and Finish: 4140 CrMo, Salt Bath Nitride Finish (Melonite)
  • Muzzle Thread: 5/8"-24 TPI
  • Gas Port Location: Pistol
  • .750 Gas Block Journal


(Weapon Armament Surface Protection)

Is a Salt Bath Nitride Finish surface conversion process or more commonly referred to as Nitriding. The Nitriding conversion is applied to the barrel inside and out, along with the front sight base on our LE rifles and uppers. Nitriding offers improved wear, abrasion, and corrosion resistance when compared to hard chrome lining or phosphating. Unlike chrome lining, where the chrome is built up on the surface, Nitriding converts the surface without the risk of dimensional build up. CMMG has been utilizing this nitriding process for many years with our LE series rifles.


Average Rating: 5 of 5 Total Reviews: 2 Write a review »

  0 of 0 people found the following review helpful:
AR 300 black out build September 5, 2016
Reviewer: Matthew Prach from Henderson, NV United States  
Thank you, great product and very good service. I recommend using this guys for your  AR build .

Was this review helpful to you?

  0 of 0 people found the following review helpful:
Give this a shot! February 3, 2015
Reviewer: Jeff from Michigan  
If your are looking for a Melonited 300 blackout barrel and CMMG is one you are considering, Then buy it right now! I am very happy with this barrel and Righttobear for fantastic pricing and great service!

Was this review helpful to you?