B&T SP5K Arm Brace. Quality Manufacturing. Tight Tolerances. Good Finish. It took FedEx 6 days to deliver in the 2 day shipping but that has nothing to do with the quality of the product or the service from the company.

The best telescopic braces on the planet IMO. I have several of these on HK's, APC'S and on a GHM9. Fit and finish is incredible and the function is awesone. Just grab it, pull it out and you're ready to fire. They aren't cheap, but you get what you pay for. Once you buy one, you will not regret it.

10/10 installs very easily, fits perfectly

Great brace once it’s deployed but a little loose and wobbly when retracted. Overall it looks good and works perfect in all different locking positions but like all aftermarket parts, it’s just not the original from HK.

Does not come with needed roll pin to mount tailhook. Arms are flexibe and in closed position could easily get bent. Seems flimsy when collapsed although lockup solid. Rear sling mount is weird. For the price I am not impressed.

I used this with H&K SP5K and SP5K-PDW and worked great for both. Only thing to note is the stock runs outside the track, but is well engineered and and very sturdy. Used one for a stock on an SBR and one for a gear head tail hook and both worked great.

Amazing quality and design as always from B&T. Buy once cry once, your HK firearms deserve only the best parts and accessories.

I really like it. Solid lockup. Good profile. Light weight but still sturdy. 4 stars because it has some wobble in the retraced position.

Excellent fit, finish, and quality. Excellent customer service.

Awesome product, fits nice and snug. Just like every other B & T Product, pure quality.