A3 Industries Triangle Folding Stock 9'' Polymer Black

The A3 Industries Triangle Folding Stock is a compact, practical option for shooters who need a shorter sight line or want to reduce their rifle's footprint for transport and storage. Built from fiber-reinforced polymer with machined aluminum reinforcement, this 9-inch folding stock combines rigidity with light weight—essential for AR platforms where every ounce matters. The heavy-duty steel hinge deploys smoothly and locks positively in both open and folded positions, so you get reliability without fuss.

This stock is designed for serious shooters who move between range work, hunting, and tactical applications. The injection-molded rubber butt-pad absorbs recoil and won't slip against your shoulder, while the integrated cheek-rest helps you dial in consistent sight alignment. Two QD sling mounts at the front of the stock give you flexible attachment points for a two-point sling—a setup that's proven itself in the field for decades.

The black polymer construction resists weather and hard use without requiring babying. Whether you're securing your rifle in a truck, collapsing your setup for a tight shooting position, or simply prefer a folding design, the A3 Industries Triangle Folding Stock delivers no-nonsense performance at an honest value.

Key Features

• Fiber-reinforced polymer body with machined aluminum reinforcement for rigidity and durability
• 9-inch overall length optimized for compact handling
• Heavy-duty steel hinge with positive latch and quick-deployment folding action
• Two QD sling mounts at front of stock for versatile sling attachment
• Injection-molded rubber butt-pad and cheek-rest for comfort and consistent sight picture
• Textured rear butt-plate for secure shoulder contact
• Black finish suitable for tactical, hunting, and range applications

Specifications

Frequently Asked Questions

What platforms does the A3 Industries Triangle Folding Stock fit?

This stock is designed for AR-pattern rifles and mil-spec buffer tube assemblies. Confirm compatibility with your specific platform's tube diameter and mounting system before purchase.

How does the folding hinge hold up with repeated deployment?

The stock features a heavy-duty steel hinge that positively latches in the open position and deploys quickly when folded. The steel construction is designed to handle repeated use without losing tension or failing to lock securely.

Does the butt-pad provide cushioning for recoil?

Yes. The injection-molded rubber butt-pad is designed to absorb recoil and won't slip against your shoulder during shooting. The integrated cheek-rest helps you maintain consistent sight alignment shot to shot.

What sling attachment options does this stock offer?

The stock has two QD (quick-disconnect) sling mounts located at the front, allowing you to run a standard two-point sling or adapt it to your preferred attachment method.