RCM - Sig Sauer M400 / 516 Magwell Model:516 G3 Compatible with CZ Scorpion magazines

Compatible with CZ Scorpion magazines excluding the Magpul D50

Rifle Combat Magwell for B&T TP9 / MP9

Rifle Combat Magwell for Springfield Armory KUNA

Includes 3/32" Hex L-Key for Install

to mount the button anywhere required with the button angled in either direction

RCM - Sig Sauer M400 / 516 Magwell Model:516 G3 Compatible with CZ Scorpion magazinesRifle Combat Magwell for Sig Sauer M400 M400 SDI The Sig Sauer M400 RCM (Rifle Combat Magwell) features a 250% larger flared funnel surface allowing for consistent and fast reloads under any condition and is intended to fit the SIG M400, M400 PRO, M400 TREAD and SIG 516 lowers. The SDI model will fit on SIG M400 SDI, SDI X or DH3 models. The 516 G3 model will fit on the newer SIG 516 G3 lowers. THERE ARE MULTIPLE VARIATIONS OF LOWER RECEIVER UNDER THE