A3 Industries
ALM - Adjustable Length Modular Folding Braces - Picatinny (1913)
ALM - Adjustable Length Modular Folding Braces - Picatinny (1913)
SKU:ALMB-STR-PSB
Fits these firearms:Grand Power StribogSpringfield KunaH&KSig MPX / MCXB&TAK & VariantsAR & VariantsCZFN SCARGForce BladeIWIKelTec +17 more
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Specifications
- Weight: 1.38 lb
- Mount type: 1913 Picatinny
- Country of origin: USA
Product Description
The ALM (Adjustable Length Modular) folding brace is packed with features. Available in straight or offset configurations, both versions offer five length settings, an adjustable cheek riser, and a QD sling socket, all standard with every ALM brace.
Machined from 6061 aluminum, the ALM is extremely sturdy, with cogged connections at each adjustment point. This ensures a rigid, rattle-free connection in every position.
Sure-Lok 1913 folding hinge (patent pending)
The Sure-Lok folding hinge is built from 17-4 stainless steel (MIM) with a QPQ finish for strength, wear resistance, and corrosion protection. A push-button release allows controlled folding, and the quick-deploy design snaps the brace into the deployed position with a firm pull, with no extra steps required. The hinge can be set up to fold left or right. Its compact, low-profile design mounts securely to any 1913 Picatinny rail using two cross-bolts for maximum rigidity, or a single centered cross-bolt when space is limited.
Extension arms
Choose a straight or offset extension arm. Straight arms adjust from 7-1/2" to 11" in length, Offset arms adjust from 8-1/4" to 11-1/4". Both styles feature five positions with cogged locking points, accommodating just about any length-of-pull requirement. Offset arms can be configured multiple ways to raise or lower the cheek riser, position the brace higher or lower, or clear items such as the ejection port or selector when folded. Both heavy-duty knurled thumb screws and low-profile screws are included, so you can choose your preferred adjustment hardware.
Xeno cheek riser
The included pedestal-style Xeno cheek riser features an aluminum base with an injection-molded polymer cheek rest. It adjusts to three heights (7/8", 1-1/8", and 1-3/8") using the cheek pad and 1/4" spacers, working with just about any optic height. The riser mounts on either side of the extension arm in three horizontal positions, and its offset mount can be flipped to fine-tune the position even further.
Brace end options
Choose from three brace end options:
- Polymer Steady-Brace
- Aluminum Steady-Brace with buffer tube style mounting interface
- Tailhook adapter for use with Gearhead Works Tailhooks
QD sling socket
A VIS steel QD socket makes sling mounting easy and can be installed in any of six adjustment holes along the side of the extension.
Features
- Available with straight or offset extension arm
- Sure-Lok 1913 folding hinge, 17-4 stainless steel (MIM) with QPQ finish
- Hinge folds left or right, with push-button release and quick-deploy
- Mounts with two cross-bolts or a single centered cross-bolt
- 5-position adjustable length, 6-1/8" to 9-1/2", with cogged locking points
- Knurled thumb screws and low-profile screws both included
- Xeno pedestal cheek riser with 3 heights: 7/8", 1-1/8", 1-3/8"
- Cheek riser mounts on either side in 3 horizontal positions, with flippable offset
- Choice of polymer Steady-Brace, aluminum Steady-Brace, or Tailhook adapter
- VIS steel QD sling socket with 6 mounting positions
- Rigid, rattle-free 6061 aluminum construction
| Specification | Details |
|---|---|
| Straight extension length | 7-1/2" to 11" (5 positions) |
| Offset extension length | 8-1/4" to 11-1/4" (5 positions) |
| Hinge | Sure-Lok 1913, 17-4 stainless steel (MIM), QPQ finish |
| Cheek riser heights | 7/8", 1-1/8", 1-3/8" |
| Brace end options | Polymer Steady-Brace, aluminum Steady-Brace, Tailhook adapter |
| Material | 6061 aluminum |
Love it but have my critiques after using it for some time. The 1913 connection is solid but uses small, easy-to-lose parts. The hinge is not comfortable to operate in a right-hand folder configuration, ymmv. (Both issues seem resolved with the new Sure Lok hinge. ) The modularity provides a wide range of mounting orientations but consistent allen key sizes would also be an improvement. Overall, A3 makes great stuff and I would recommend this.
The brace itself is very nice and has positive and desirable adjustability. The offset is definitely recommended for taller/longer shooters. The brace mount has a small footprint giving it some adjustability in mounting height (at least for the picatinny mount adapters). My only complaint is that it does have a small wobble in it because of the hinge design. It isn’t a huge deal, it’s a small amount but it is present. The stribog adapter is my bigger problem, the adapter itself is not a great fit and easily doubles the amount of wobble in the brace. I would not recommend the adapter for the stribog, it will mount to the stock back plate on the stribog just fine, and have better fitment.
This is an awesome option. I'm a tall guy with long arms so having adjustability is great. Workmanship and quality is very good. The hinge is very solid but a little stiff at first. After several cycles open / closed, it was much easier to close. Hinge also can be used in both directions. Cheek pad option is highly recommended.
I worked on weapons and components as a machinist, the craftsmanship, quality of materials and durability is in every piece of equipment I purchase from A3 , functions perfectly and the esthetic’s of said components make your weapon look and function completely, amazing , the looks I get at the range , everyone wants to know where I purchased my add ons . A3 is for me and my fry. Thank you A3 industries
Brace is extremely stable and fun to use.
Love how this looks on my new Vector G3. The check risers make getting the right sight picture perfect every time.
I was considering a fixed A3 brace because they look more well made and overall better than most out there. Once I saw this fully adjustable option, I had to have one!
Super solid and intuitive construction
Looks and functions great
Locks up well and folds easily
Adjustability put my cheek and eye exactly where I needed them.
A3 also has great customer service and helped me through the ordering process because I needed a specific mount.
Don’t hesitate
Extremely well built, solid lockup, would absolutely buy again if I needed another one.
Great brace, love the adjustability.
Good product fast shipping as described
I love the feel of this stock, it's very sturdy. I also love the ability to customize.
I also had a slight delay in the shipping process due to a QC concern they found while assembling my order. The fact that they inspected the order enough to find the issue gave me great confidence in their quality. They ALSO gave me free 2 Day Air shipping to help speed things along. I was VERY happy with my interactions with them, and specifically Chris R. I can't recommend them enough, and will continue to buy from them in the future.
Rock soild setup fits perfectly on my ptr9ct and the adjustable riser is peak
Excellent fit and finish, locks up tight and looks sexy as fuck, will buy again when I can afford another
Looks and feels great on my new Gen 3 Kriss Vector. Will probably pick up another one for my MCX spear LT. thanks A3
Well done a3, add to my bren2 it’s solid!
I have sold and use a number of your arm braces the fit and finish are great. They make all of the firearms I have installed them on more valuable because of your quality
I ordered this for my Kriss Vector Gen3 and it looks great on it. Very comfortable and fully customizable. 10/10
Overall design, manufacturing quality is excellent. Very pleased with the overall look and feel of the brace.
This is one of the best brace options on the market
This is a solid brace with the nice feature of being able to adjust your length of pull. It’s as sturdy and well engineered as their other braces, with added functionality. I have no complaints, it feels and functions great. Good job A3!
Everything about this brace is rad! I was looking at their non-adjustable braces for my AP5 but I didn't know what length to get, then I saw this adjustable one. The thumb screws are a nice touch and made adjusting the length easy. I'll be getting another one for my Stribog!