LMT MRP 5.56 NATO Chrome Lined Barrel - 20"

Manufactured by Lewis Machine & Tool
Manufactured by Lewis Machine & Tool
(0) No Reviews yet

Out of Stock

NOTE: Limit 1 per household. Quantities exceeding 1 will not allow checkout.



The MRP 5.56mm Chrome Lined Barrel by Lewis Machine and Tool Company is a versatile and durable barrel. The LMT MRP barrel boasts an A2 birdcage flash hider to help mitigate muzzle flash. The barrel is coated and cryogenically treated for long term durability. It features a 41V50 chrome moly vanadium steel construction and is chrome lined for a high-degree of reliability and accuracy. Additionally, the cryogenic treatment further enhances the strength and service life of this barrel. It features a low profile gas block and mid-length straight gas tube to ensure optimal performance.  In short, the LMT MRP Chrome Lined Barrel offers the durability and performance enhancing features that one would expect from a high-grade carbine. LMT’s unrivaled reputation for accuracy and durability are on display with this barrel, a barrel that can withstand heavy use and abuse of any environment. The LMT 5.56mm barrel is a quality upgrade to any rifle and a great component for any AR build by providing unmatched durability, reliability and accuracy.

  • Manufactured by Lewis Machine and Tool
  • 5.56mm
  • 20-inch barrel
  • 41V50 chrome moly vanadium steel barrel, chrome lined 
  • 1:7” RH twist barrel
  • For LMT monolithic receiver 
  • Cryogenically treated for maximum durability
  • A2 birdcage flash hider
  • Low profile gas block
  • Mid-length straight gas tube
  • Direct impingement

Lewis Machine and Tool Company has been providing US Military, law enforcement, and government agencies with high-quality weapon systems since 1980. LMT is dedicated to providing that same level of precision engineering to civilians as well and is even expanding into foreign military services. All LMT Defense products are 100% made in America and they are a qualified 2005 GSA supplier. Lewis Machine & Tool has also won many awards for their quality engineering and excellence in business.
See More


Barrel CoatingManganese Phosphate
Barrel ContourMedium
Barrel Length20
Barrel LiningChrome
Barrel Material41V50 Chrome Moly Vanadium Steel
BrandLewis Machine & Tool
Caliber Gauge5.56 NATO
Feed RampsM4
Gas Seat Diameter.750
Gas System LengthMid-Length
PlatformLMT Rifles
Thread Pattern1/2 X 28
Twist Rate1:7

Ratings & Reviews

No reviews available

Be the first to Write a Review