Lewis Machine and Tool MRP-L Stripped AR-15 Upper Receiver - 13.25" - M-LOK Handguard

The Lewis Machine And Tool MRP-L Stripped AR-15 Upper Receiver is the starting point for a full-size LMT MRP build. Built as a bare monolithic M-LOK upper for rifle-length gas systems, this receiver lets builders reconfigure barrel length and caliber without buying a second rifle.

Features:

• 13.25" monolithic M-LOK handguard
• MRP-L receiver with 14.5"+ intermediate barrel compatibility
• 5 QD sling attachment points
• True monolithic top rail
• Forward assist and A2 flash hider included
• Black finish

This full-size MRP-L receiver fits intermediate-caliber cartridges with barrels 14.5" and longer, and by installing different LMT barrels, the same receiver can go from a combat carbine to a full-length SPR, or transition to .300 Blackout or .224 Valkyrie, without buying multiple guns. It is one of three available MRP sizes, sized for rifle-length gas systems rather than the shorter CQB handguard or the .308-class MWS.

The monolithic top rail provides a single mounting surface for optics, the 5 QD points give flexible sling setup options, and the receiver ships with a forward assist and A2 flash hider installed. This version uses an M-LOK handguard for accessory attachment, though quad-rail and slick-side configurations are also available.

Lewis Machine And Tool is a U.S. military and law enforcement supplier known for precision manufacturing and its patented MRP quick-change barrel system, with decades of field service behind the platform.