FITS FRONT: BERETTA PINTAIL SLUG GUN; BSA MONARCH MEDIUM ACTION IN 222, 243 & 308; BSA CF2, MONARCH LONG ACTION IN 7MM, 270 & 30-06; COLT SAUER; HERTERS U9 ROUND RECEIVER; HOWA 1500 S/A, 1500 L/A; MOSSBERG 100 ATR, 1500, 1700, MPV; RUGER M77 (ROUND TOP DRILLED); SAUER 200; SHILEN ROUND RECEIVER; WEATHERBY VANGUARD S/A, VANGUARD L/A, MARK V MAG. CAL EXCEPT 240 MAG.; FITS REAR: BERETTA PINTAIL SLUG GUN; COLT SAUER; MOSSBERG 4X4; SAUER 200; SHILEN ROUND RECEIVER;