LMT MRP-L MLOK 11.5″ ‘Specwar’ Upper Receiver Chassis, OD Green
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. The only tool needed is a standard T-30 Torx bit to tighten the bolts. This receiver requires the patented LMT monolithic barrel assembly which has a low profile gas block with straight gas tube.
The MRP-L MLOK 11.5 ‘Specwar’ is designed for use with 12.5″ barrels, but can use barrels longer than 14.5″ in length. M-LOK compatible attachment points on all 8 sides. Barrel not included.



Damien –
Already owned a black specwar. Wanted to buy an OD Green one. Been sitting on a reciever for a while and when Rooftop got these uppers in i had to snag one. Rooftop is the best gun parts company to order from. Best prices, fastest shipping, and Sol is the real deal! 10/10 recommend!
Chris (verified owner) –
Quality you expect from LMT is what you get with this Specwar monolithic upper. Sol ships super fast and the Ramen is much needed when you spend this much on guns!
Zach H. (verified owner) –
Fantastic product from an awesome shop. The sweatshop gets its done quick and at the best prices.
Matthew B. (verified owner) –
It is exactly what you expect. Arrived in a couple days. Best prices for it. Finally was able to get a barrel and make a “Specwar”. I had some cerakote missing on the inside of mine. Did not affect a single thing. Asked Sol some questions and got answers outside of working hours. One of the many reasons I buy here anytime I can. Plus the ramen