ULTIMATE M135 Spring - Red Brand_Krytac integrated MOSFETS and electronic trigger

integrated MOSFETS and electronic trigger units (ETU)

Magnetic Charger included: Compact (45mm x 15mm x 11

A fantastic pistol for the collectors

26 round magazine for the  STI 1911 M

ULTIMATE M135 Spring - Red Brand_Krytac integrated MOSFETS and electronic triggerHigh quality spring from ULTIMATE. This is the Red M135 spring from ASG Military specification spring steel which means the best possible steel for springs. The calibration test has been carried out on 6. 03 300mm barrel. Zero hopup with 0. 20g BB's. Progressive coiling Provides a soft start which eases stress on both mechanical and electrical parts. Closed and grinded ends Stable straight ends minimizes side bending which reduce ROF loss. Pre