The LMT Defense Monolithic 12.5" Mid-Length Barrel is a high-performance barrel, designed for AR-platform rifles chambered in 5.56x45 NATO. Built from durable chromoly steel, this barrel ensures exceptional accuracy, reliability, and longevity, making it ideal for tactical, defense, and duty applications.
Easier approval. $0 Down. Easy installments up to 36 months. Approvals up to $5,000. No hard credit inquires for Pre-Approval. Apply and Buy Today!
Shoot Now, Pay Later® 4 Pay
Pay in 4. Four Payments, no interest for purchases between $150 to $985. No hard credit inquires for Pre-Approval. Apply and Buy Today!
Shoot Now, Pay Later® 4 Pay and Traditional Financing
Try Pay in 4 at 0% interest for purchases between $150 to $985. Or Select Easy installments up to 36 months. Approvals up to $5,000. No hard credit inquires for Pre-Approval. Apply and Buy Today!
LMT Defense Monolithic 5.56x45 NATO 12.5" Barrel Features
This precision-machined barrel features a mid-length gas system, offering smoother recoil impulse and improved reliability compared to shorter gas systems. The 1:7" twist rate stabilizes a wide range of bullet weights, ensuring consistent accuracy and performance in various shooting scenarios.
The direct impingement operating method allows for efficient gas cycling, reducing excess weight while maintaining consistent function under demanding conditions. Finished in black for corrosion resistance, this barrel is engineered for long-term durability and rugged use.
LMT Defense Monolithic 5.56x45 NATO 12.5" Barrel Specifications
Caliber: 5.56x45 NATO
Barrel Length: 12.5 inches
Barrel Material: Chromoly Steel
Rifling Twist Rate: 1:7"
Gas System: Mid-Length
Operating Method: Direct Impingement
Finish: Black
More Information
Condition
New in Box
Finish Per Color
Black
Manufacturer
LMT Defense
Manufacturer Part Number
R-L7MJ1B
Model
Monolithic 12.5" Mid Length Barrel
Type
AR Barrels
UPC
815415016757
WARNING: This product can expose you to chemicals including arsenic, which is known to the State of California to cause cancer. For more information, go to WWW.P65WARNINGS.CA.GOV
Questions And Answers
Reviews
Due to increased state legislation around firearms, you must be 18 to access our site.
