Description
The Proof Research 308 20 10TW is a rifle barrel in 308.
Check the twist rate against the bullet weights you intend to shoot. Twist decides which bullets a barrel stabilises, and it is fixed when the barrel is made.
It is chambered in 308. Chamber and bore have to match the ammunition exactly – a barrel is not adaptable to another cartridge.
Fitting a barrel is gunsmithing on most actions: headspace has to be checked with gauges after installation. An AR-pattern barrel is the usual exception, being a drop-in against a correct bolt.
This is a part or accessory, not a firearm, and ships directly to your address.
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