PTR .308 Barrel Length Velocity Difference 16.5”, 12.5”, 8.5”

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Range Toyz
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Barrel lengths make a big difference for velocity and flash.

PTR KF Carbine 16.5” .308/7.62x51. Primary Arms FFP 4-14x44 ACSS HUD DMR on UTG 30mm QD Rings, SilencerCo Specwar 7.62 with Armageddon Gear High Temp Suppressor Cover, Club Foot Stock with Rubber Buttpad and Magpul MS1 Sling.

PTR K3P 12.5” SBR .308/7.62x51. EOTECH XPS2-0, SilencerCo Chimera with Standoff Front Cap and Rubber Buttpad.

PTR 51P 8.5” SBR .308/8.62x51. EOTECH XPS2-0, OSS HX-QD 7.62, Rubber Buttpad and Magpul MS1 Sling.