Stock Option


Temporarily on backorder status. We’re pausing Stock Option sales until our folding mount is ready.

Specs and Notes:

• direct fit to any M1913 Picatinny rail! Use on a Black Collar Arms chassis or on dozens of firearms such as SIG SAUERs, CZs, BRN-180, AKs, and many other rifles with a native rear Pic rail or an available Pic rail adapter.
• adjustable cheek rest (quickly and highly adjustable for height, five-position adjustable for front-rear location). Stock is also comfortable for use with cheek rest removed.

• comfortable and grippy rubber recoil pad
• 7075-T651 aluminum construction (fixed and folding mounts plus stock body)
• Mil-Spec Type III Hardcoat anodized black (custom coatings applied on top of anodizing — we don’t skimp on that surface hardness!)
• only 10.6 ounces fully assembled with cheek riser, recoil pad, fixed mount, and all associated hardware.
• Folding hinge mount can be flipped to fold stock to left or right side. Locks rock solid when open. Spring detent holds stock folded. Simply pull rearward to open; hinge locks automatically in extended position.
• Dual, ambidextrous QD sling sockets at top and bottom rear

Please email our boy Jeeves at with any questions and sign up on our waitlist below to be notified when Stock Options are back in stock.


Additional information

Weight 15 oz
Dimensions 12 × 6 × 1 in
Stock Mount

Fixed, Folding and Fixed


Black, FDE, Stealth Gray, OD Green, Midnight Bronze, Mini M81 Camo, MultiCam Black


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