It has a quick spring change system and the spring guide

000 revolutions per minute unloaded

What's in the Box

Complete custom Hicapa from SS AIrsoft

slide locks

SS Airsoft Custom HPA CAT - Sensei w/ PolarStar Jack 8.4v It has a quick springSS Airsoft Custom Built HPA airsoft rifle. We build some of the best custom HPA airsoft replicas you will find on the market. All weapons are test fired, tuned and adjusted to work perfectly right out of the box. SS Airsoft Custom HPA CAT Sensei Sensei Includes: Arcturus X C. A. T. M4 AR 15 Legend AEG 8. 5" (AT CAT 02) Polarstar Airsoft JACK Electro Pneumatic Gearbox Conversion Kit V2 SS Airsoft IGL Standard Weave Jack 1. 1 (Checkered Flag) MAXX Model