TIGHT BORE BARREL 7.1mm/9.5mm/27.5cm FPS INCREASE! M4A1 GEN8 , SCARV2 ETC : BEASTPRO
FOE USE WITH HIGH FPS WHITE MILKY AMMO ONLY!
BIG INCREASE IN FPS AND ACCURACY
BEASTPRO IS FULLY AUSTRALIAN OWNED AND OPERATED - ALL PARTS IN STOCK. FREE SHIPPING FOR ORDERS OVER $100