AR57 upper

I borrowed this AR57 upper (in 5.7x28mm) from a friend specifically for the amusement of certain friend’s daughters. Both of his girls are left-handed, so the upper that has next to no recoil and ejects down through the magazine well was just the right toy.

Because the rear rail on this upper is so short and because inserting magazines requires certain clearance, the compact Primary Arms prismatic 3x proved the best fit. For lack of room for a rear sight, I added a tiny CTC laser to the front rail instead in order to have some backup for close range. That rail is nowhere near the barrel, so heat isn’t an issue. The upper is pure blowback, so there’s no gas tube. I used a Cavalry Arms lower to reduce the weight.

I have some handloads with Barnes “varmint grenades” and samples from Elite Ammunition on the way, so we’ll find out how well it shoots next range trip.

The shooter shown is a wonderful example of successful home schooling. At 16, she has the demeanor rivaling the best-socialized adults. Working with her and her father was a rare pleasure.

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8 Responses to AR57 upper

  1. perspicuity says:

    AR 57 claims that use of Elite Ammo in their toys instantly voids the warranty…

    Not sure WHY that’s the case, but it’s what they told me.

    Look forward to your testing…

    (PS: more RMR-30 please :>)

    • Oleg Volk says:

      Where did you see that? Their manuals do not say it and I couldn’t find that through Google, either.

      • perspicuity says:

        called them directly, spoke to the lead tech/designer.

        i think the rub is that Elite is considered not factory ammo.

        interesting: priviti partisan is allegedly going to produce 5.7 ammo, at a low low low price. mmm.

  2. Bill Treanor says:

    I forgot to mention this to you the other day: you can use a hollowed-out magazine to catch the brass from your AR-57 upper….

  3. tad stratton says:

    We can lower the weight a little bit more by using a gripod. Also considering milling off the back prails as they are unessesary.

    Cheers,
    ts

  4. Bob Ralke says:

    May wife and I tried one when we were in Vegas and thought it was a great especially having an mag that big

  5. Sean says:

    NO hearing protection? And did the girls have fun?

    • Oleg Volk says:

      Dry fire only that day. The girls have not yet fired it, this young lady is a daughter of a different friend.

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