12 inch SBR

Product Description
CQB MRP Defender Piston with 12” chrome-lined
barrel, semi-auto bolt carrier group, SOPMOD
lower and standard trigger, 5.56
NOTE: ALL NFA RULES APPLY FOR THE SALE OF THIS WEAPON. Please contact us with any questions regarding purchase of a Class 3 Firearm.
It began when LMT’s Defender series of AR/M4/M16 rifles morphed into the user-interchangeable barrel
system Monolithic Rail Platform. The MRP gave the owner true multi-barrel capabilities. Then LMT offered a
choice of interchangeable calibers as well, with hot varmint cartridges like the .204 Ruger and the latest
battlefield round the 6.8 SPC. Now the latest stage in rifle evolution is here: interchangeable operating
systems. Embodied in the CQB MRP GAS PISTON, available in complete guns or as an upgr ade, the piston
system lets the rifle run cleaner, cooler and more accurately than conventional Direct Impingement models.
Free-floating barrel inside a
durable, one-piece upper receiver
machined from a solid forging for
maximum accuracy and strength.
Assembly and disassembly are
very easy with this system to make
access in the field very quick.
This system can be adapted to mission-
specific needs by switching barrel length
and caliber. Currently available in 5.56.
However, future calibers are in the works.
LMT upper receivers (T) markings are laser
engraved so that you can see and identify
positively in the dark with night vision on.
Operators can go from a 12”
barreled 5.56 CQB carbine to a
16” rifle in less than two minutes.
All LMT bolts and barrels are mag
particle inspected and proof tested.
Efficiency of operation enables
operator to use a much greater
variation of ammunition.
Runs cooler than standard direct
gas impingement systems.
Runs cleaner than the direct
gas impingement systems.
All LMT barrels are machine gun
grade barrels for greater life.
All LMT upper receivers are dry-film lubed.
Machined one-piece bolt carrier for
ultimate in strength and reliability.
Closed system causes venting to
occur at the barrel, reducing light
and noise so you don’t give away
your position when shooting at night.
It can also be shot suppressed.
Short stroke system eliminates exces-
sive pressure on the bolt.
Bolt carrier group utilizes a proprietary
coating that is harder and more wear
resistant. The piston gas plug also
utilizes this technology and prevents
carbon and copper from sticking.