Seekins Precision SP IRMT-R AR15 Upper Receiver Billet AR-15

Seekins Precision SP IRMT-R AR15 Upper Receiver Billet AR-15

Part Number:10900007
Your Price: $249.00
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Seekins Precision iRMT-3 AR15 Upper Receiver SP Billet AR-15


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 rifle. Instead of a standard barrel nut our iRMT system uses an externally threaded, Titanium barrel nut with 1-1/8” wrench flats on it for simple installation. No special proprietary wrenches needed.
SP iRMT-3 Upper is compatible with the Seekins Precision SP3R rail system. THIS IS THE UPPER RECEIVER ONLY. HANDGUARD RAIL SYSTEM SOLD SEPARATELY.



  • Seekins Precision Billet iRMT-3 Upper
  • CNC Machined from 7075-T6 Billet
  • M4 Feed Ramps
  • Mil-Spec 1913 Picatinny Rail
  • Integrated rail mounting technology
  • Titanium barrel nut included
  • Type III Class 2 Hardcoat Anodized Finish

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