PK Firearms Logo

Your home for AR-15 parts & accessories!

PK Firearms Logo

Rock River Arms PISTOL Receiver Extension Kit

$40.00
SKU: 
920

Rock River Arms pistol receiver extension kit for pistol lower receivers. Includes fluted and knurled pistol receiver extension, car buffer, car buffer spring, and ambi loop pistol receiver plate. Available options for different buffers.



Rock River Arms OPERATOR Stock - COMMERCIAL

$99.00
SKU: 
1327

Rock River Arms, "Operator" 6 position stock. Features a rubber, push button, vertical adjustable butt pad along with waterproof battery storage. Holds 2 AA or 3 123A batteries per side. Two Ambi QD sling swivel sockets. Low profile adjustment lever. Includes Commercial receiver extension,  end plate,  castle nut, buffer spring and standard CAR buffer.

Available in Black and Tan.

Options available for buffer upgrades.



Rock River Arms OPERATOR Stock - MILSPEC

$119.00
SKU: 
1616

Rock River Arms, "Operator" 6 position stock. Features a rubber, push button, vertical adjustable butt pad along with waterproof battery storage. Holds 2 AA or 3 123A batteries per side. Two Ambi QD sling swivel sockets. Low profile adjustment lever. Includes Mil-Spec receiver extension,  end plate,  castle nut, buffer spring and standard CAR buffer.