UTG Low Profile Picatinny Panel Covers, 2.7", Black, 6/Pack is molded impact resistant high strength polymer and 2.7" in Length. The UTG low profile picatinny panel rail cover guards are slim, lightweight and securely fits into any MIL-STD-1913 picatinny rail. Simple and secure snap on installation with posi-lock stop bar to prevent shifting. Unique scalloped design provides a comfortable non-slip gripping surface