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Most Recent Reviews
Great brace by Luke, Verified Owner, March 25, 2026
Worked as advertised and fits picatinny rail perfectly.
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Product Info for A3 Industries Adjustable Length Modular Folding Brace, Tailhook Configuration, Straight Extension

The new ALM (Adjustable Length Modular) Folding Braces are packed full of features. Available in straight or offset configurations, both variants have 5 length settings, a cheek riser with adjustable height and adjustable mounting positions, and a Quick-disconnect (QD) sling mounting socket - all standard when you buy the ALM folding brace.image

Machined from 6061 aluminum, the ALM is very sturdy, with cogged connections at each adjustment point. This ensures a very rigid, rattle-free connection at any position.

Specifications for A3 Industries Adjustable Length Modular Folding Brace, Tailhook Configuration, Straight Extension:

Manufacturer: A3 Industries
Color: Black
Length: 6 1/8 in

Features of A3 Industries Adjustable Length Modular Folding Brace, Tailhook Configuration, Straight Extension

  • HD Steel APEX hinge with 1913 Picatinny interface, manufactured from 17-4 stainless with QPQ Nitride coating
  • Hinge can mount to fold left or right and has rapid-deploy feature
  • 5-position adjustable length with cogged locking points
  • User can choose the HD knurled thumb-screws OR low-profile screws for adjustment - both included.
  • Your choice of Straight or Offset Extension arm
  • Extension arms adjust from 6-1/8"-9-1/2" in length
  • Pedestal style XENO aluminum cheek riser with injection-molded polymer cheek rest
  • Offset mounted cheek riser adjusts horizontally in 3 positions and can be flipped for extra adjustment
  • 3-position vertical height adjustments on cheek riser - 7/8", 1-1/8", 1-3/8"
  • Choice of 3 different brace end options
  • VIS steel Quick-disconnect socket for easy sling mounting - 6 mounting positions

Package Contents:

  • A3 Industries Adjustable Length Modular Folding Brace, Tailhook Configuration, Straight Extension
  • CHEEK RISER QD SLING MOUNT

A3 Industries Adjustable Length Modular Folding Brace, Tailhook Configuration, Straight Extension Orderable Models

List of Orderable Models

  • A3 Industries Adjustable Length Modular Folding Brace, Tailhook Configuration, Straight Extension, Black, 6-1/8in-9-1/2in, ALMB-STR-THA , MPN: ALMB-STR-THA , UPC: 810151873787 , Code: 69H-SBF-GHBN7T-ALMB-STR-THA
  • A3 Industries Adjustable Length Modular Folding Brace, Tailhook Configuration, Offset Extension, Black, 6-1/8in-9-1/2in, ALMB-OFF-THA , MPN: ALMB-OFF-THA , UPC: 810151873817 , Code: 69H-SBF-GHBN7T-ALMB-OFF-THA
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