Description
The Midwest Industries Triangle Side Folding Stock is a rigid, lightweight folding stock designed for AR-style platforms with a Picatinny attachment. It uses a heavy-duty side-folding mechanism engineered for strength and consistent lockup in both open and folded positions. Constructed from Hard Coat Anodized 6061 aluminum, the stock pairs metal rigidity with a polymer cheek piece and a rubber butt pad for shooter comfort. The design includes multiple QD sling attachment points and is made in the USA with a Midwest Industries lifetime warranty.
Key Specifications
- The folding mechanism is constructed from 4140 heat-treated steel.
- It features a full-length locking lug for positive lockup in both positions.
- The stock body is made from Hard Coat Anodized 6061 Aluminum.
- The cheek piece is polymer and the butt pad is rubber for added comfort.
- Includes 5 QD sling attachment points for versatile sling setups.
- The stock adds 9.25 inches to the firearm’s overall length when extended.
- The stock adds 0.75 inches to the firearm’s length when folded.
- Complete assembly weight is 19 oz.
- Steel components are finished with a mag phosphate treatment.
- Made in the USA and backed by a Midwest Industries Lifetime Warranty.
This Triangle Side Folding Stock offers a compact, durable folding solution that simplifies transport and storage while maintaining a secure platform for consistent cheek weld and shooting geometry. The combination of lightweight 6061 aluminum construction, robust steel hardware, and multiple QD sling options makes it a practical upgrade for users who prioritize reliable folding performance and comfortable ergonomics.
Note: Designed for use with firearms that have a Picatinny attachment. Not for use with firearms that have buffer assemblies; all NFA rules apply.






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