You'll be happy you did, congrats.
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I built an 11.5" BCM 5.56 upper on a pistol lower, and a 9" BCM 300 Blk upper on a pistol lower. I have SB PDW's and Geissele Super 42's on both. The 556 is fine of course. The 300 Blk works fine with 220 gr Remington UMC Subsonic ammo with the H1 buffer that comes in the Super 42. I ordered an H2 ans H3 buffers to try. BCM recommends an H3 buffer with 300 Blk and high velocity ammo.
Have you spent time with one without a brace? I ask because when I first tried the concept I tried minus any kind of brace. To me the negatives out weigh the positives. I just put together a range blaster 5.56 for under $400, putting a PDW on it would double the value.........I put a law folder on my 300 pistol ;).
What did you go with? I have an original Tailhook on my CZ, I love it. I have a KAK on a lower, I like it and the price point is great. I just ordered an SBA3 and a Tailhook Mod 2. I like the idea of an adjustable brace. The Tailhook Mod 2 arrived, it's expensive but I like the solid rear. I am looking forward to the SBA3.
Thanks. I missed that. That's a cool brace.
Without handling the SBA3, I wonder if my Tailhook mod 2 is worth the extra $100. I'll have to wait until I shoot it to pass judgement.
usmcvet, interested in what you think of the SBA3...
I am a fan of the Tailhook Mod 2 especially if you ever have to use it as a brace. No straps to get in the way either. Running mine with a LAW folder all tucked away in a Vertx backpack.