Modify - Hybrid 6.03mm Precision Inner Barrel 363 mm for M4A1 New & Old Types/R.I.S./SR16, XM177E2, SIG551) 30 cal Active Wash provides a boost

Active Wash provides a boost to your garment’s performance features

Zipper: #5 Coil zip with auto-lock zipper

double screw fixing

and fabric

- 4 x Pistol mag/tool pouch

Modify - Hybrid 6.03mm Precision Inner Barrel 363 mm for M4A1 New & Old Types/R.I.S./SR16, XM177E2, SIG551) 30 cal Active Wash provides a boost1st Class Stainless Steel + Aircraft Aluminum Alloy. Extremely Straight with High Rigidity and Accuracy Guided by an O Ring to reduce barrel vibration. Comes with a Modify 2 Ring+ Hop Up Bucking, Airtight up. DESCRIPTION Modify's Hybrid 6. 03x363mm Precision Inner Barrel FOR M4A1 NEW & OLD TYPES R. I. S. SR16, XM177E2, SIG551 The Modify Hybrid Precision Inner Barrel is 363mm long with inner diameter of 6. 03mm, suitable for M4A1 New & Old Types R. I.