GM-M11S M4 11.5", Finned Barrel in 5.56x45mm 1:7 Twist

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Caliber- 5.56x45mm
Twist Rate- 1:7
Length- 11.5"
Profile- *FINNED* Please find the detailed drawing of this barrel in the photos above
Finish- Nitride
Gas System Length- Carbine
Gas Block OD- .750+-(.001)
Steel Type- 41V50
Thread Pitch- 1/2x28
Weight- 1.50lbs

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