JBU 6.75in MSS Barrel Extension

JBU 6.75in MSS(Modular Suppresor System) Barrel Extension features: 

JBU (MSS) Modular Suppressor System   
Aluminum Alloy Construction
14mm Counter Clock Thread Flash-hider
6.75in x 1.5in dimension 
5pc Set, includes Flash-hider  
Unique JBU Serial Number  
Fits All 14mm CC Thread AEGs 

JBU 6.75in x 1.5in, Modular Suppressor System, Includes Aluminum 2pc Long Version & QD Steel Phantom flash hider.  Constructed with High Strength Aluminum Alloy and Unique Serial Number, (5pc Set) includes: barrel cap, forward extender, base extender, flash-hider adater, & flash-hider.   Modular Suppressor System can be extended with Item# SDJBU15 or SDJBI16, each unit will add or subtract ~3.25in.