Airtech Studios IBS Inner Barrel Stabilizer - G&G SMC-9 Barrel Length_250mm Keep in mind that

Keep in mind that

secondary sling loop located in the middle of the stock

Height: 10cm

Multicam Black in colour

Airtech Studios IBS Inner Barrel Stabilizer - G&G SMC-9 Barrel Length_250mm Keep in mind thatThe IBS Inner Barrel Stabilizer Unit is designed to lock down the gun's inner barrel to prevent any axis movement at the muzzle and hop up end which may cause major deviations and inconsistencies on the BB's trajectory. Once installed, your rifle performance will noticeably shoot straighter and further with a proven improvement in groupings. This is one of the easiest yet most effective upgrades for the SMC 9. The IBS is a simple, yet highly effective