NORICA GRS 700N GASRAM +30 J UPDATE GRS SYSTEM OR REMOVE SPRING+PISTON SEAL
: More force less precision.yes in spring. but not With gasram. WATCH THIS VIDEO OF THE 17 CALIBER FIRE SMALL 4.5MM 20 grains. NORICA GRS GAS RAM NITRO PISTON 60 KG 65 0R 70 KG. NORICA MODELS.