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JSE Custom Complete AR-15 Upper 5.56 NATO Flattop 16" 1:9" Twist Chrome Moly Lightweight Barrel Railed Gas Block CAR Handguard with Bolt Carrier Group and Charging Handle

JSE Surplus
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This high quality custom upper receiver group features a flattop receiver and single rail gas block ready to mount optics or iron sights. This custom Upper comes complete with a 5.56 NATO chamber, 1:9" twist barrel, A2 flash hider, M4 style extended feedramps, AR-15 style handguard with heat shield, bolt, bolt carrier and charging handle.

16" Heavy Barrel (ARR-632)
20" Heavy Barrel (ARR-633)
16" Light Barrel (ARR-634) 
Total number of Reviews: 6

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5.0 5
"At the risk of sounding typical, great service and shipping. ARR-634 JSE barrel/Upper is amazing and fit my complete Rock River lower like a glove. Absolutely a tight fit!! can't wait to get to the range this weekend."
5.0 5
"Very pleased, I am considering buying a second one for my next AR. Fit perfect on OMNI lower nice and tight. Very fast shipping."
5.0 5
"Shipping fast one day. I reload for all my guns and friends. So I have only shot my loads. Upper shot with no problem. Very accurate. Cheap dot scope. 53 gr Hornady v-max 18.5 gr imr 4198. Great going to buy another one soon."
5.0 5
"I recently purchased several AR lowers and am building out a variety of rifles with them - this upper is the cheapest I've found by about $100. Everything fits well, and it cycles like a champ."
5.0 5
"Fast shipping! This upper fit my New Frontier poly lower like a glove. Being my first AR, I like that it is really light weight since I'm not a big person. I do wish that the gas block rail was receiver height. I'll have to change the block or my flip up sights. I fitted it with Magpul MOE hand guard, stock, grip, and mags, awesome!"
5.0 5
"Face it, most of us shoot crappy ammo more often than the good stuff, so we secretly want something that will eat the junk reliably. This is my second JSE lightweight upper and it eats anything you feed it. If you're worried about Tula or Wolf, worry no more. No FTFs or FTEs. Reasonable accuracy, and it fits tightly on a Spikes lower."