HOME OF THE MONOLITHIC RAIL (MRP) UPPER RECEIVER SHOP NOW
$3.50
NSN: 5310-99-492-9560
Caliber
.204 Ru, .260 Rem, .300 BLK, 5.56×45, 6.5 Creedmoor, 6.8 SPC, 7.62×51
Operating Method
Direct Impingement, Piston
