T91 was a further development of the T86 assault rifle which had been intended to replace the T65 assault rifle series in

SRC MP5-SD6 GEN II Electric Rifle

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SRC MP5-SDF GEN II Folding Stock Electric Rifle

More info will be upload soon.

Bullet: 6mm BB Bullets

Magazine Capacity: 500 rds

FPS: approx 338 with 0.20g bullets