AR-15 5.7 Upper with 16" Barrel

Item # WX2-162199

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Shipping restrictions apply to this product under some jurisdictions. Known age, state and local shipping requirements are applied at checkout and may result in changes to an order.

This item cannot ship to Canada.

This item cannot ship internationally.

Details & Specs

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

Turn your 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 for the easiest maintenance.

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 5.7 Upper with 16 Barrel is rated 4.8333 out of 5 by 6.
Rated 5 out of 5 by from Better than expected,got the 2nd Gen.This was way better than Gen1 Thanks again
Date published: 2014-04-24
Rated 5 out of 5 by from Wanted something different for my most recent build, and this was it! Received a brand new Gen2 AR57 upper instead of the Gen1 that was pictured at the time (fluted barrel, spring loaded/flatter folding charging handle, and slightly different rear rail). Feeds and fires everything I put through it. Definately a head turner at the range, especially with my Mepro M21 on top! Lots of fun!
Date published: 2014-04-03
Rated 5 out of 5 by from Product is as advertised. Ordered 2 magazines just before the 5.7 upper assembly, the 50 round units. Changed out the buffer unit in my carbine lower with the one supplied from the manufacturer and took it to the range. Upper assembly,magazines,and lower ran through 2 magazines like a well tuned machine. thanks for a great product at a great price.
Date published: 2014-02-10
Rated 5 out of 5 by from These days, these are hard to find. Everybody advertises them, but they have none in-stock, and they can't tell you when they'll be available. SG had the lowest price of anyone. Thought this order might turn into a months long back order, but took a chance anyway. Upper was shipped within 24 hrs, delivered within 5 days!. NIB, AR57 LEM, serial numbered, w/ BCG & correct carbine buffer. Life time warranty from AR Five Seven.
Date published: 2014-02-02
Rated 4 out of 5 by from I have not shot the upper yet but it is apears to be well made. The only trouble I had was the magazine did not seem to fit properly.
Date published: 2011-06-02
Rated 5 out of 5 by from Absolutely love it!
Date published: 2010-05-08
Q & A
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