My boom stick
99% made by PSA
welcome to the forum. very nice little pistol there man.
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I am curious to hear your opinion on how well the flash can works. I have never shot an AR with one on it.
will do
@bo8m move your rear sight all the way back.
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Another PSA upper. Been wanting burnt bronze pistol for a while now. Finally pulled the trigger. On a Centurion CM4 lower.
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Looking good so far… 
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I did the same thing. I tried to scrounge the rest of the parts for my Jack 9 build. I think that I finally got all the specific parts that I really wanted. I am glad that I always keep a supply of the small parts on hand. It really paid off this time.
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yeah all my other AR’s are grey and black…this is a new venture for me lol
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The funny thing for me is that all of my builds are OD Green but one. That one is my varmint AR and it is black. The Jack 9 that I will be building shortly is going to be my first FDE AR. I have built plenty of FDE AR for my friends and it is a popular color.
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I just thought about it that this will be the first build for me that has an SB Tactical SB3 brace. I went the SBR route all those years ago because if I remember correctly there wasn’t a SB Tactical company yet.
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yeah they are great the SB3/4 adjust 5 positions…they are very comfortable
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My Jack 9 build will have a customized Fostec Echo II binary trigger just like my older SBR in 9mm. 
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Here’s my current truck gun.
This upper: https://palmettostatearmory.com/psa-10-5-carbine-length-5-56-nato-1-7-phosphate-lightweight-m-lok-slant-12-upper-with-bcg-ch-5165448530.html
With an EPT, SBA3, MS4, and a PSA lower.
I prefer the fixed M4 style sights on this hefty version.
I’m currently in the process of proving reliability and then putting into service a similar setup but with an 11.5" barrel.
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Those fixed sights I actually traded some hand-loaded 9mm Ammo for. I do know that UTG makes rear sights similar to that one, and I am guessing that the front is the same.
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