The Grendel R31 is a semi-automatic carbine by Grendel Inc. that is chambered in .22 Winchester Magnum cartridge and is fed via 30-round, detachable box magazine that is housed in the pistol grip. The carbine has a skeleton butt that can be extended using the two tubes that are housed on either side of the receiver.
Asking for $1500 Shipped if you are interested you can reach me at 813-503-1159 I can provide more pictures
