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Thread: Confused: Pistol RE smooth or with adjustable rail? VLTOR A5 Pistol RE & SBA3 Brace?

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    Confused: Pistol RE smooth or with adjustable rail? VLTOR A5 Pistol RE & SBA3 Brace?

    I am not pistol educated so forgive me. I searched.

    I see pistol receiver extensions that are smooth and some that have the bottom adjustable rail like a normal receiver extension? What is the story?

    Can you put a VLTOR A5 "smooth" RE and a SBA3 brace together? How do you put a brace on a "smooth" pistol RE? Do you have to have a pistol RE with adjustable rail on bottom to use a brace? Are brace's REs proprietary ?
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    The parts will mechanically fit, but you won't be able to use the two fore-most positions unless you cut a hole about the size and position of the SB logo at the rear. SB uses a standard CAR tube on the A3 and A4; the M4 slides onto a no-rail "traditional" pistol tube. PDW-style and other braces do vary.

    The mockup for "Mk 18 Mod Briefcase" had an A5 pistol tube (no rail) with an SBM4; sliding it on took lots of hand sanitizer for lube.

    Personally, right now I'd go "bare no-rail tube, no brace" until Asshat Terrorist Fascists drop their "final rule" and it goes through the courts. JMHO, though.
    Last edited by Diamondback; 10-15-22 at 18:30.
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    The way I understood it. Pistol RE had to be smooth? Is that not correct?
    Am I seeing that you could legally put a Pistol Brace on a standard type RE (with bottom position rail) and that is how things are done now?
    "First gett'n shot, then gett'n married... baaaad habits"

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    Quote Originally Posted by M4Fundi View Post
    The way I understood it. Pistol RE had to be smooth? Is that not correct?
    Am I seeing that you could legally put a Pistol Brace on a standard type RE (with bottom position rail) and that is how things are done now?
    What I'm saying is the first generation braces (Shockwave Blade, SB "Sig Brace," SBM4) were designed to slide onto bare tubes, the second (Blade 2.0, SBA3/A4) were designed to ride CAR rifle tubes. A lot closer to the edge of the limit... The older designs are still available.

    Personally, I would stay away from ALL braces until ATF makes their play and then Thomas bends them over and shoves it right back up their ass.
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    Great info. I just thought the "law" or "ATF Rule" was that Pistol RE had to be smooth and oversized so that it was impossible for a regular milspec stock to be capable of being installed. I did not realize that most braces these days were manufactured to be installed on a normal milspec receiver extension.
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    Quote Originally Posted by M4Fundi View Post
    Great info. I just thought the "law" or "ATF Rule" was that Pistol RE had to be smooth and oversized so that it was impossible for a regular milspec stock to be capable of being installed. I did not realize that most braces these days were manufactured to be installed on a normal milspec receiver extension.
    The "Law" or "Rule" is whatever ATF says it is, and it's changed about 20 times in the last 10 years. Must be smooth, can be standard RE, can shoulder it, can't shoulder it, can shoulder it, can't shoulder it, blah, blah, blah.

    I agree with the advice to let this settle out before you spend money chasing a braced pistol. Or just pay your $200 and build an SBR. You're probably gonna end up there anyway so might as well get started waiting.

    And I personally doubt challenges to whatever ATF decides here will be successful. How are those bump stock challenges working out?

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    The VLTOR A5 pistol RE works great with something like a Tailhook Mod 1, not so much with a SBA3 Brace. FYI, you will also need to use an open ended armorer's wrench, a BCM barrel/castle nut wrench works, Magpul armorer's wrench will not work.
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    Quote Originally Posted by kerplode View Post
    The "Law" or "Rule" is whatever ATF says it is, and it's changed about 20 times in the last 10 years. Must be smooth, can be standard RE, can shoulder it, can't shoulder it, can shoulder it, can't shoulder it, blah, blah, blah.

    I agree with the advice to let this settle out before you spend money chasing a braced pistol. Or just pay your $200 and build an SBR. You're probably gonna end up there anyway so might as well get started waiting.

    And I personally doubt challenges to whatever ATF decides here will be successful. How are those bump stock challenges working out?
    Would suggest reading a but more about the SC sending the bump stock case back to the 5th Circuit before assuming it was a loss... If the 5th Circuit doesn't revise their ruling in light of the Bruen decision, they will be getting overturned. The SC refused the case because they followed proper protocol by allowing the 5th to get their crap together.
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    Quote Originally Posted by M4Fundi View Post
    The way I understood it. Pistol RE had to be smooth? Is that not correct?
    Not really. A regular carbine receiver extension has NEVER been designed or intended to be shoulder fired.

    It is simply some being overly cautious about “constructive intent”, whatever that actually means legally. Remember when people said an auto carrier would get you fed time?

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    There's the ATF bs checklist form that defines things. ATF Worksheet 4999

    I not sure about mixing things, but, adjustable or not only makes a points diff on the bs worksheet.

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