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Old March 7th, 2012, 15:34   #21
Heerven's Avatar
Join Date: Nov 2009
Location: Montréal
You really missed something!
Velocity adjuster for GBBR . This little accessory you insert in the bolt carrier somewhere and allow to adjust velocity from standard to minus 150FPS. The manufacturer is RA-Tech.
A lot WE GBBR owners use this.
We will find a way.

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