Seekins Precision’s Integrated Rail Mounting technology (iRMT) uppers integrate the rail mounting points into the upper retaining the stiffness of a true monolithic upper while allowing the rails to be completely modular. This new upper design is considerably thicker in the most critical area and will aid in squeezing all of the potential accuracy out of your AR15 rifle. Instead of a standard barrel nut our iRMT system uses an externally threaded, Steel barrel nut with 1-1/8” wrench flats on it for simple installation. No special proprietary wrenches needed.
SP iRMT-R upper is compatible with Seekins Precision’s BAR rail and MCSR rails
Weight: 13.15 Ounces
This upper rocks! Seekins Integrated Rail Mounting technology, in one word... perfect! Attached to this is a 15" Seekins MCSR V2 Mod Rail. Acts and feels like one piece with the ease to seperate the handguard for assembly. Flawless design and function!
This is the best upper ive ever had the pleasure of owning. super EAsy to correctly install a baRREL and rail, plus it is crazy accurate!!! i TOOK THE BARREL OFF A 6.8SPC BUILD THAT SHOT 1-1.5 INCH GROUPS AT 100YDS AT BEST AND INSTALLED IT ON A IRMT-R UPPER WITH 13.2 INCH BAR-RAIL. i'm now shooting .5 inch groups with the exact same barrel!!!! will only purchase seekins-precision products for all my ar-15 needs from this day forward!!!!