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Customer Reviews
Helpful Positive Review
Lightweight with Solid Lockup by JD, Verified Owner, May 17, 2026
Stock is lightweight. A3 push button mount is easy to fold with a solid lockup. Cheek riser is solid design and secure, it was to high for my purpose but is removable. Just a FYI does not lock in folded position but has enough resistance to stay put.
1/1 found this helpful
Most Recent Reviews
Well made stock by Brimreaper, Verified Owner, June 5, 2026
I converted my Kel Tec R50 to a Stuff and Things carbine, and I used this stock. Solid folding mechanism. Very well made. Upgrading from a stupid wire stock to this went from me never shooting the gun, to now it goes to the range every time I go.
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Product Info for A3 Industries 1913 Folding Polymer Stocks w/Riser

The NEW 1913 Polymer Folding Stocks are a unique blend of components using a LAGE polymer stock combined with our popular 1913 Picatinny APEX steel hinge. Available in multiple lengths with various add-ons, they can be easily configured for a host of unique applications, and fit on any firearm with a rear 1913 Picatinny mounting point.image

The stock itself is injection molded from fiber-reinforced polymer, producing a very rigid design with no flex. They are available in 8.50" and 9.50" base lengths, and these lengths can be custom tailored with the optional length modifiers shown in the images above.

An optional cheek riser and QD (quick-disconnect) sling moutning socket is also available.

These hybrid stocks utilize our popular steel APEX hinge assembly, composed of 17-4 stainless with a durable Nitride coating. The hinge features a positive lock in the deployed position, and a quick-deployment feature from the folded position.

Specifications for A3 Industries 1913 Folding Polymer Stocks w/Riser:

Manufacturer: A3 Industries
Color: Black
Weight: 14 oz, 17 oz

Features of A3 Industries 1913 Folding Polymer Stocks w/Riser

  • HD steel hinge, glass-reinforced injection mlded stock, polymer cheek rest

Package Contents:

  • A3 Industries 1913 Folding Polymer Stocks w/Riser
  • CHEEK RISER

A3 Industries 1913 Folding Polymer Stocks w/Riser Orderable Models

List of Orderable Models

  • A3 Industries 1913 Folding Polymer Stocks w/Riser, Black, 9.50in, PFS-9.5-R , MPN: PFS-9.5-R , UPC: 810151872438 , Code: 69H-RSF-GHBN31-PFS-9-5-R
  • A3 Industries 1913 Folding Polymer Stocks w/Riser, Black, 8.50in, PFS-8.5-R , MPN: PFS-8.5-R , UPC: 810151872445 , Code: 69H-RSF-GHBN31-PFS-8-5-R
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Last updated 2026-07-04 UTC.