AR-15 5.7mm Upper Assembly with 16" Barrel

Item # WX2-160862

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Details & Specs

Complete AR-15 5.7mm Upper Assembly transforms your AR into a powerhouse!

Turn standard AR-15 Rifle into a FNH 5.7 with a 16" barrel.

Specs:
  • Fits FN PS 90 top-mounted magazines (not included) for straight line, low-profile shooting, even prone
  • Performance design ejects spent casings down the mag well, eliminating flying brass (and hot cases down shirt collars!)
  • Upper receiver and rails are precisely milled from a solid block of 7075 T6 aircraft aluminum for years of service
  • Rails accommodate any style of sighting system
  • Barrel has flash hider
  • Blow-back action, no gas system to get fouled. Easy maintenance.

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Please Note : Intended for use with carbine stocks and comes with a carbine (230g) buffer. An additional (233.5g) buffer is required for all "butt-stock" / A2 type lower receivers.

Reviews
AR-15 5.7mm Upper Assembly with 16 Barrel is rated 4.6667 out of 5 by 3.
Rated 4 out of 5 by from Solid and fun; my new favorite plinker! The AR-57 upper is a very solid piece of ordnance, and is rather front-heavy, but don't let that stop you. With the single-billet receiver and fore-end carved 'from the solid', you get no muzzle-flip, and essentially no recoil. It's a pure blow-back design, and it needs a very little in the way of maintenance - cleaning is simplicity itself.The receiver fits perfectly in any standard AR-15 lower receiver, and there are picatinny rails in all the usual places. There's *just* enough room to set both optics and off-set iron sights, if you *really* must have both. Realistically, the rear-most top rail can only accommodate relatively short optics, or you start to interfere with the magazine. The rails themselves are perhaps a bit narrower than standard; Magpul accessories fit perfectly, but other accessories may need a bit of shimming to ensure a tight fit.Magazine changes are a bit odd, but you'll get used to them. Be *certain* to buy quality magazines - I bought two off-brand magazines from another vendor, and had both fail at exactly the same point, in exactly the same way - poor-quality follower springs took a 'set' and failed to cleanly feed a round, resulting in a failure-to-feed jams. Speaking of which - familiarize yourself with the operation of the magazines and clearing failures-to-feed *before* you get to the range - these are NOT like any other firearm you've ever fired!Now to the good stuff: Firing it!The AR-57 has essentially NO perceptible recoil. It's not a long-range sniping weapon; it's a short-range light-duty carbine. It's more than adequately accurate within its useful range - about 150 yards, maximum. It's also FUN! Load up a 50-round magazine, and it feels like you can shoot all day. Sure, loading the magazine is a bit long-winded, but it's worth it, especially if you charge several magazines before leaving the house - you can shoot and shoot and shoot! If 5.7x28 ammo were any less expensive, or any easier to reload, I'd be shooting this every day - It's THAT much fun! I ditched both magnifying optics and iron sights early on - a simple 30mm point sight is really all you need for this upper - you're not going to be shooting any further than 150 yards, or you'll be 'mortaring' your shots onto the target.If you've got varmints - woodchucks, coyotes, gophers - in close quarters, this is perfect. I wouldn't try taking anything heavier than varmints with this round, though - just not enough 'oomph' there. And certainly not at any lengthy range! Tin cans, gourds, and squash, though - Those are in serious danger!The AR-57 has become my new favorite 'plinker.'
Date published: 2014-10-18
Rated 5 out of 5 by from Item is better than expected. Excellent craftsmenship Functions great.
Date published: 2014-02-12
Rated 5 out of 5 by from Simply GREAT item. I would think you could in clued at least one clip with the kit.
Date published: 2014-01-26
Q & A
<!--begin-bvseo-questions--> <!--begin-questions--> <div id="bvseo-questionsSection"> <div class="bvseo-question-answer" data-questionid="1339200"> <h2 class="bvseo-question"> whats the difference between this one and Item # WX2-162199 also is this one the gen2 Item # WX2-160862 </h2> <div class="bvseo-question-detail"> </div> <div class="bvseo-author">Asked by: steve</div> <div class="bvseo-answer" data-answerid="1587800"> Both item (WX2-162199) and (WX2-160862) are the same. They are both the generation 2 model. <div class="bvseo-author">Answered by: Customer Service</div> <div class="bvseo-pubdate">Date published: 2014-11-04</div> </div> </div> </div> <script type="text/javascript"> if (document.getElementById('bvseo-questionsSection')) { document.getElementById('bvseo-questionsSection').style.display = 'none'; } </script> <!--end-questions--><ul id="BVSEOCPS_GEN" style="display:none;"> <li id="bvDateModified">2014-12-27</li> <li id="pq">bvseo-cps-pq-8,30</li> <li id="tq">bvseo-cps-tq-1</li> <li id="sq">bvseo-cps-sq-recentAnswersFirst</li> <li id="pl">bvseo-cps-pl-CONV</li> <li id="cn">bvseo-cps-cn-sportmansguide</li> <li id="tl">bvseo-cps-tl-en_US</li> <li id="cp">bvseo-cps-cp-1</li> <li id="en">bvseo-cps-en-PRD</li> <li id="ex">bvseo-cps-ex-160862</li> <li id="bp">bvseo-cps-bp-question_prod</li></ul><!--end-bvseo-questions--><!--BVSEO|dz:Main_Site-en_US|sdk:v1.0.7.0-n|msg:timer 31ms -->

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