Durable Custom M16A4 RIS, 130m/s, AirsoftGuns, BY-055, BI-5581M

Durable Custom professionally upgraded version of the electric airsoft gun M16A4 RIS [BY-055/BI-5581M] with muzzle velocity up to 130 m/s. This is not a standard serial production in China or Taiwan, where it is not possible for weapons to be provided much time and care. Upgrade was provided by our company, which has more than ten years of experience and plenty of satisfied customers.

Identification Durable Custom suggests that the weapon was drawn particularly on high emphasis of solidity and durability of the internal parts of the gun. Configuration requirements for a good performance, healthy rate of fire excellent durability and reliability. This full metal weapon comes from the latest edition of which has recently processed metal body with functional dust cover. The latest model M16 with metal RIS handguard, long heavy barrel and a removable transport handle, a sight on which it is possible to attach different scopes and red dots. Fixed stock storage battery is certainly an advantage.

Gun was fitted by parts from SHS, which has become a world leader in AEG upgrades. The following components were used..

Complete cylinder set from the SHS:
CNC metal piston head with the bearing
SHS metal cylinder head M4
Polished stainless steel cylinder M16
Aluminum nozzle M16/M4 - 21.5 mm

Stress parts from SHS:
Precise piston with a steel teeth
A set of classic gears - standard (16:1)
Rotary spring guide for the gearbox v. 2

Power modules from SHS:
Long motor SHS - Torque
Spring M110
Precision 6.03 mm barrel

And the other:
Silicone Hop-Up rubber system
Delayer clip SHS
Metal Hop-Up set M16/M4
Gilded T-Dean connector
Universal MOS FET switch kit - Type Standard

Basic metal reinforced gearbox was modified by radii and metal chamber of gun was propped by rubber o-rings, which is intended to prevent premature rupture of the gearbox. This problem is frequent for homemade upgrade and upgraded weapons mass-produced in China or Taiwan and with strong spring. The weapon is equipped with a spring M110 and inflict cylinder set and good alignment a performance of up to 130 m/s is achieved. The weapon is luxuriously equipped with low resistance wiring and silicon MOS FET switch which is with strong springs absolutely necessary, but often manufacturers and retailers underestimated. The package not include charger or battery, we recommend to order types. See recommended accessories tab. The pack is supplied with tactical sling + handles, cleaning rod, Wind Up Hi-cap Magazine 300rds, tactical grip, 2pc covers on RIS rails and box AN/PEQ 2 (imitation laser sight).