Building an AR 15 input please

[Arley]

Got my upper and stuff today. Very nice fit and finish to DPMS lower . The "Boron " finish on the bolt is slippery as heck .
Now I need to get that ugly front sight / gas block off . It is riveted on Guess I'll drill the rivets out and I hope it will slip off with out scuffing up the SS barrel .
I'll get some pics out in the next day or so .

[Riverpigusmc]

I would rethink that if it is a CQB/HD weapon which is what mine is. BUIS are a must for that

[Grizzman]

Are you sure the FSB is riveted in place? I've got two PSA uppers with standard FSB/gas blocks, and they've got the correct pins.

I'll be removing one of the FSBs this week.

Here's a bit of info from someone that knows a thing or two on the subject.

http://www.ar15.com/forums/t_2_138/1...aper_Pins.html

[Arley]

Originally Posted by Grizzman

Are you sure the FSB is riveted in place? I've got two PSA uppers with standard FSB/gas blocks, and they've got the correct pins.

I'll be removing one of the FSBs this week.

Here's a bit of info from someone that knows a thing or two on the subject.

http://www.ar15.com/forums/t_2_138/1...aper_Pins.html

On closer inspection they are pins , Thanks .

[Gatorade]

Originally Posted by Arley

On closer inspection they are pins , Thanks .

Those are taper pins. Thicker on one end thinner on the other so they only go in and out from one side. Make sure you know which side to remove them from. Then you will need to replace it with another gas block as well.

[Arley]

Had another gas block and got it on .Pins came out pretty easy . Also have fold down sights so put the front one on and trial fit a scope " Mueller AVP 4-14 x 40 . Pretty decent glass . Also have a 3 x 9 x 50 off brand . So on it goes . I will need to stop for now till nxt . months Eagle droppings . Then some JP trigger springs a couple mags and some brass . The RCBS dies are coming and Dillon cal. conversion about broke the banker ( Wife ) .

[Gatorade]

Originally Posted by Arley

Had another gas block and got it on .Pins came out pretty easy . Also have fold down sights so put the front one on and trial fit a scope " Mueller AVP 4-14 x 40 . Pretty decent glass . Also have a 3 x 9 x 50 off brand . So on it goes . I will need to stop for now till nxt . months Eagle droppings . Then some JP trigger springs a couple mags and some brass . The RCBS dies are coming and Dillon cal. conversion about broke the banker ( Wife ) .

Just remember 5.56 is usually crimped primer so you need to ream the primer pocket before priming. .223 is usually easier but not as common on the range.

[Arley]

Originally Posted by Gatorade

Just remember 5.56 is usually crimped primer so you need to ream the primer pocket before priming. .223 is usually easier but not as common on the range.

Ya I stay away from 5.56 brass . Just don't like the hassle . Many times I have had people give me their once fired brass at the range but only .223 do I take .

Thanks for the reminder though .

Arley

[Arley]

This is it so far .

[Grizzman]

It looks like you're making good progress.

Is the flash hider timed properly?