The SLR Rifleworks Magwell is designed to aid in gun manipulation. The smooth funnel of the magwell ensures fast reloads, whether in competition or self defense. Features7075 Billet AluminumBlack hardcoat anodizeIncludes ultra low-profile billet attachment screwIncludes relief for Taran Tactical pinWill work with 10-round mags (for states with capacity restrictions)Will not work with backstraps DISCLAIMER: This product is not manufactured, authorized, endorsed, or warranted by GLOCK. GLOCK does not warrant or represent that this product is compatible with GLOCK pistols.