Windham Weaponry 20in Crown Muzzle Varmint Exterminator Upper Receiver Assembly for AR15 / M16

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SKU ur20fssftvb Category Tag

This superbly accurate Barrel – from our Varmint Exterminator Rifle – is ready for your custom rifle project. Precision machined from 416R Stainless Steel, it includes a matched bolt machined from Carpenter 158 Steel. It is machined to mate with the Compass Lake specification Chamber for highest possible accuracy. The barrel is matte finished to avoid varmint spooking glare, and is fluted to reduce weight, increase barrel surface and add rigidity. A Picatinny Rail Gas Block is included should you want to attach a front sight. Button rifling is 1 turn in 8inches – right hand twist for optimum accuracy with a wide range of heavier .223 / 5.56mm varmint bullets. The tubular free-float VEX handguard has M-LOK compatible cooling slots.

CALIFORNIA RESIDENTS ONLY – WARNING: Cancer and Reproductive Harm –

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