B&T APC223 SBR. This one was created from a chopped longer barreled version which means that it uses a longer gas system than the typical 12" version. It also has an adapter and ACR stock. If desired, it could be removed from the registry and sold as a pistol. 

For more pictures or if you have any questions, please text or email me, as I don't check this often. 

303-731-6009

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