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Discussion Starter #1
Well this thing is interesting. Its a AR-15- PS90 cross bread. The one piece modular upper snaps onto any AR-15 lower. Allowing you to fire 5.7x28mm with the PS90 50 round mags. I added HK 416 rifle sights. I wanted to use the LaRue Tactical Aimpoint mount in the picture but I think the sight may stick out to far to mag change:( we will see. I just used a DPMS complete lower with a Magpul grip and stock. It has a right side charging handle. The upper and lower color match perfect. I am really impressed with the quality. It still has the bolt open feature like the AR-15. It does utilize the buffer tube with the stock AR spring and a Heavy buffer that came with it. It ejects the spent cases through the mag well. I had a cheap 30 mag that was no good so I gutted it and cut the top off so it will work as a funnel for the spent cases. I purchased the Upper from www.HKSpecialist.net who shipped and I received it over night. Great guy to deal with. Unfortunately I can’t find them for sale anywhere else and I got the only one Gordon had left. The Manufacturer’s web sight is www.57center.com . I put 150 rounds down the pipe today after work with out a hitch. Really sweet accuracy at 50 yards open sights. And it was easy to engage multiple targets with no recoil throwing me off. I cant wait to put a optic on it. I am leaning towards a Aimpoint Micro T-1. Enjoy the pics.....................






 

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:cool: very COOL!!!!

I've been trying to decide what to do...

Go and build what you just did. 5.7x28 upper with AR lower

OR

Go and build a 50 cal upper with a AR lower.

Decisions decisions.... hmmmmmmm
 

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NICE! :shock:
I didn't think anyone actually had them in stock yet.
I guess I need to go find a spare lower. Any suggestions on a place with one for a decent price?
 

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thats looks cool, whats the plastic ar 15 magazine for? and do the rounds still eject out of the bottom?
 

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horse9640 said:
thats looks cool, whats the plastic ar 15 magazine for?
Shell Deflector is my guess. I would assume its a gutted out AR mag used to keep the brass from falling into you.
 

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Discussion Starter #11
tqtran said:
horse9640 said:
thats looks cool, whats the plastic ar 15 magazine for?
Shell Deflector is my guess. I would assume its a gutted out AR mag used to keep the brass from falling into you.
Yup, its a gutted mag with the top cut off. I was interested in using it for a brass catch. But I think Ill have to use a 40 rounder to hold them all. with out the base plate the mag directs the spent brass right in front of my feet............
 

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I hate you so much...I sold most of my guns :oops:
 

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:cry: :cry: :cry: I want one!!! :!:
 
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