This is a Lancer Magwell chambered in 556NATO, model LAM-QD.
Lancer's one-piece Adaptive Magwell is a bolt-on upgrade for all milspec AR-15's which increases the effective diameter of the magazine well" decreasing reload time and improving reliability under stressful or adverse conditions.
Features:
6061 T6 Aluminum
Rubber Gasket for a Snug Rattle-Free Fit
Fits Milspec AR-15 Rifles
