A3 Industries HDA3 Hybrid Folding Stock for B&T APC Pistol

The HDA3 is a modular stock/brace system developed from a collaboration between Haga Defense and A3 Industries. The HDA3 was designed specifically to integrate seamlessly across dozens of firearm platforms without sacrificing strength or aesthetics to do so. 

The HDA3 fills a footprint that the gun industry has already come to love while providing a level of quality, modularity and durability that has never been offered in a similar package. The HDA3 is designed, manufactured and assembled in the USA. 

FEATURES:

• Folding Steel Hinge: The HDA3 utilizes a steel hinge assembly, ensuring a strong lockup in the straight and folded position that will not degrade with use. The HDA3 will by default fold to the left side canted at 3.5 degrees. Right side folding variants will be available at a later date. 
• Strong Bones: The HDA3 is designed with all metal internal components for maximum durability. An aluminum cheek riser button and length adjustment latch both interface with an extruded aluminum spine that ties into the steel hinge. 
• Adjustment: The HDA3's length can be adjusted in .5" increments between 7 positions. The cheek riser can be used in three positions. In the lowered position, raised .25" or raised .5". Both adjustments can easily be manipulated one-handed. 

SPECIFICATIONS:

• Mounts directly to the B&T APC (pistol caliber variants)
  
  • 6061 hardcoat anodized aluminum adapter
  • Adapter dimensions: 2.82" Tall by 1.49" Wide
  • Buffer NOT included. Re-uses existing factory buffer
  • Fits: APC9, APC10 & APC45
  • WILL NOT FIT APC223, APC300 & APC308
• Length: Stock configuration: 7.99-10.99"
• Weight: Stock configuration: 1lb 5.0oz
• Heavy duty Locking Hinge
  
  • Nitride coated 17-4 stainless steel
  • Folds to the left side canted at 3.5 degrees
• 7 Position extrusion with length adjustment in .5" increments
  
  • 6061 aluminum extrusion with 7075 aluminum locking latch. Hardcoat anodized
• 3 Position Cheek Riser (0, +0.25" & +0.50")
  
  • Polymer construction with hardcoat anodized 6061 aluminum adjustment button
• Textured Butt-pad (stock) manufactured from injection molded "rubber-like" Santoprene TPE
• High-Strength Polymer: All polymer components are injection molded 30% glass fiber reinforced nylon. 
• Sling Mounts: There is a sling loop as well as two steel QD mounting points at the rear of the HDA3. There is one additional QD mount machined into the aluminum adapter. 
• Color: Available in Black, FDE, and ODG.
• Designed, manufactured and assembled in the USA