In the last post, I told you I bought an HK SP5K. It’s relatively heavy and begging for a brace. I don’t really feel the need to spend the money and wait to register it to be a Short Barreled Rifle (SBR) and there are actually a ton of arm brace options out there.
Option 1: The SBT5KA Brace
I have a SB Tactical SBT5A Brace on my POF-5 and really like it. I knew they made a version for the SP5K known as the SBT5KA but I was hoping for something different. Please note they are two different models of braces reflecting the different receiver end caps.
Option 2: The SOB Brace
Every time I write this product name – the “SOB” – down, I smile. SB Tactical has a ton of braces for the AR/M4 weapons family and they have evolved a ton away from the ugly original. The SOB has clean lines and I run one on my PTR PDWR. I think it looks good and has handled the .308 rounds from the PDWR just fine and feels solid too.
Option 3: The SBPDW
I thought I had found just what I wanted with the SBPDW – a collapsing stock that looked really slick and it would be easy enough to add an M4 adapter to the SP5K. So, I ordered a very well made adapter and the expensive SBPDW stock and guess what? It would not fit.
Needless to say, I was bummed. I had it completely installed only to find out that the guide rods on the SBPDW run right into the sides of the SP5K. Crud. I didn’t feel like figuring out all the changes that would be needed.
The Winner? The SBT5KA
Well, I was bumming from the strike out with the SBPDW so I went with my second pick – the SBT5KA. I felt it was most true to the lines of the MP5K and ordered one. As with their other braces, SB Tactical did a great job.
Installation was a breeze. Pull out the two small pins at the back, swap the old end-cap for the brace, push them together and reinsert the pins. I did make sure the recoil rod lined up and nothing was binding as I reassembled the unit.
I Did Clean and Lube The Internals
I should point out that when I removed the end cap, I went ahead and slid out the bolt group and lubricated everything. I applied Super Lube grease to the bolt body and Mobil 1 Synthetic 10w30 via a precision oiler to the rollers of the bolt and rotating surfaces. I also oiled the pins on the trigger pack while greasing the hammer face with Super Lube.
So you see I went with the SBT5KA brace. In the next post I will discuss handguards.
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