Description Critiques (0) LMT 40mm m203 receiver. Meant to be mounted to any conventional 1913 Picatinny rails. Would not incorporate barrel or sight. Involves 3 recoil lugs and three locking lugs to hold to rail. Constructed from 7075 T6 aluminum forging for toughness. WARNING: This products can expose you to https://derrickm578vuq1.wikiitemization.com/user