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Internal Upgrade Parts > Tight bore inner barrel  
407mm Tight Bore Barrel 6.01mm

 

Material : Aluminum
Item Number : JA-63

 

6.01mm Tight Bore inner Barrel 407mm Hard Anodized, aluminum construction.Iincrease FPS by 10-20 without additional modifications. Compatible with M4A1 / SR16 / SG551


 
 
 
 
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