What is the LMT MRP?
The patented LMT monolithic rail platform (MRP) upper receiver, has a receiver and handguard that are made from a single piece of aerospace grade aluminum. The barrel is held in place with a proprietary locking system that utilizes two locking bolts accessible from the right side of the receiver.
Are LMT uppers proprietary?
LMT barrels made for the monolithic platforms are proprietary. While all MWS barrels are compatible with that platform, the MRP hosts two upper receiver lengths, each with their own capabilities.
What barrel does LMT use?
stainless match barrels
LMT is currently supplying 16″, 18″ and 20″ 1:11¼” twist (rifling grooves complete one full revolution inside the bore every 11.25 inches) blackened stainless match barrels, as well as 16″ and 20″ chrome-lined chrome-moly 1:10″ twist barrels for the civilian market.
What is a monolithic rail?
Called the Monolithic Rail Platform (MRP), the rifle was designed to cure some ills common to this weapon system and provide some needed options. Featuring an innovative one-piece receiver/handguard system and quick barrel-change capability, the MRP is destined to find favor with SWAT officers.
What is a monolithic AR upper?
The patented LMT Monolithic Rail Platform, MRP™ upper receiver. The receiver and handguard are made from a single piece of aerospace grade aluminum. The barrel is held in place with a proprietary locking system that utilizes two locking bolts accessible from the right side of the receiver.
How long do LMT barrels last?
According to LMT, stainless barrels will last between 10,000 and 20,000 rounds, while the life expectancy for its chrome-lined barrels is between 20,000 and 40,000 rounds.
How long do AR-15 gas rings last?
A set of gas rings in a properly maintained AR-15 chambered in . 223 / 5.56mm NATO rifle with a quality, internally chromed BCG, using good quality ammunition, should exceed 6000-8000 rounds before needing replacement.