Triangle Folding Stock 9'' W/Cheek Rest & Buttpd Alumn Blk

The A3 Tactical Triangle Folding Stock is a compact, lightweight alternative for shooters who need a collapsible platform without sacrificing stability or controls. Built around a rigid fiber-reinforced polymer body with a machined aluminum chassis, this 9-inch folding stock delivers the rigidity of a fixed stock with the operational flexibility of a folder—ideal for tactical carbines, home defense setups, or any build where space matters. The integrated cheek rest and textured rubber butt-pad ensure a solid, repeatable cheekweld and comfortable shouldering even in rapid-fire sequences.

Deployment is swift: a heavy-duty steel hinge with positive latching keeps the stock locked in the open position during use and snaps closed in seconds when stowed. A pair of QD sling mounts built into the front of the stock give you flexibility in how you rig carry hardware without adding bulk or requiring rail real estate. This is genuine A3 Tactical quality—no plastic compromises where it counts.

Whether you're building a compact AR variant, a specialized platform, or replacing worn original equipment, the Triangle Folding Stock strikes a balance between durability, ergonomics, and practicality that fits hunters, competition shooters, and tactical operators alike.

Key Features

• Rigid fiber-reinforced Zytel polymer construction for durability without excess weight
• Machined aluminum body for strength and precision fit
• Integrated cheek rest for consistent sight picture and comfort
• Textured rubber butt-pad for secure shouldering and recoil management
• Heavy-duty steel hinge with positive latching and quick-deploy folding
• Two QD sling mounts at the front for modular carry attachment
• 9-inch collapsed length for compact handling

Specifications

Frequently Asked Questions

What platform is this stock designed for?

The Triangle Folding Stock is a 9-inch modular stock body. Compatibility depends on the specific receiver and buffer tube setup of your rifle platform. Confirm with the manufacturer or your builder that this stock matches your platform's interface before purchase.

Does it come with sling attachments?

Yes. The stock features two QD (quick-disconnect) sling mounts integrated into the front of the stock, allowing you to attach slings or carry hardware without needing separate brackets.

How does the folding mechanism work?

A heavy-duty steel hinge keeps the stock locked in the open, ready-to-fire position. When you're ready to stow or transport, the hinge allows quick-deploy folding, collapsing the stock to 9 inches for compact storage or handling.

Is the cheek rest removable?

The cheek rest is integrated into the stock body as part of the injection-molded rubber assembly. It is not user-removable, but provides a consistent, textured surface for solid cheekweld alignment.