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RUGER SR556

RUGER SR556

http://www.youtube.com/watch?v=fxBBn88PfJg
http://www.youtube.com/watch?v=98Vff1np7jk
http://www.youtube.com/watch?v=kzSKtYJpehA

I want to build one GBB base on this.......! Tomorrow ARs' battle rifles.

Gas piston push rods system, .223 & 5.56 selective piston

Rust resistance (light weight) one piece bolt carrier - bolt.

Poormans P416.

[ 本帖最後由 rho837 於 30-12-2009 12:54 編輯 ]

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