Warning

 

Close
Confirm Action

Are you sure you wish to do this?

Cancel Confirm
AR15.COM
AR Sponsor
4/11/2008 6:06:07 PM EDT


Just wanted to get that in the record.
4/11/2008 6:17:52 PM EDT
[#1]
Duly noted!
4/11/2008 6:42:27 PM EDT
[#2]
Me too. So I do this to my trigger guards.



Now what to do about that bolt catch roll pin......
4/11/2008 6:53:38 PM EDT
[#3]
I would also like to go on record as a roll pin hater!  yep... I'm a hater...

Oddly the bolt catch does not bother me, but I HATE the trigger guard pin...

I hear you can squeeze the daylights out of them with a pliers and then they start easier...

I'm planning to do 3 or 4 lowers tomorrow, so I'm gonna try it!  
4/11/2008 6:57:00 PM EDT
[#4]
What size screw is that?
4/11/2008 7:02:25 PM EDT
[#5]
You have to have the Magpul trigger guard, which comes iwth the screw, correct?
4/11/2008 7:11:38 PM EDT
[#6]
Roll pins are the number one cause of stupid marks.
4/11/2008 7:28:42 PM EDT
[#7]
I also hate roll pins.

I have built up two lowers, and have yet to find a reliable technique for not messing up the bolt catch pin.

The trigger guard pin has been okay though.

I have found that black electrical tape is quite useful. It sticks fairly well even to oily surfaces. Wrap that puppy up everywhere you suspect you might hit it with a wayward hammer or punch.
4/11/2008 7:42:09 PM EDT
[#8]
I put a couple layers of duct tape on the side of my lower and then have a helper hold the pin and the lower while I tap the roll pin with a small hammer and a long punch that allows me to tap the punch without getting anywhere close to the lower with the hammer.

if you put a bit of CLP on the lower before you duct tape it, it comes off pretty cleanly.
4/11/2008 8:01:58 PM EDT
[#9]

Quoted:
You have to have the Magpul trigger guard, which comes iwth the screw, correct?


Yes, to  install helicoils.
4/11/2008 8:02:45 PM EDT
[#10]

Quoted:
What size screw is that?


The trigger guard has helicoils installed. The button heads are 4-40.
4/11/2008 8:11:31 PM EDT
[#11]
I've done 10 lowers in the last 3 months - all the same way - not one scratch.
Wrap lower with thick plastic bag, secure with rubber bands, hold roll pin & small roll pin punch (from set - part number 85245520 at MSC Industrial Supply Inc.) together with two fingers and tap lightly with brass hammer to start.  The roll pin punch has a small protrusion that settles into the hole to prevent slipping during the drive.  Use the correct tool & never have any regrets.
4/11/2008 8:23:45 PM EDT
[#12]
I too wrap the receiver in tape and start the pin with needle nose pliers and a tap with a wee hammer but after that I squeeze them in place with a pair of channel locks wrapped in tape.  They go in slick as snot that way.
4/11/2008 8:31:51 PM EDT
[#13]
Roll pin starters and punches make mistakes a lot less likely, especially the starters.
4/11/2008 9:28:50 PM EDT
[#14]

Quoted:
Roll pin starters and punches make mistakes a lot less likely, especially the starters.


quoted for truth
4/12/2008 1:24:37 AM EDT
[#15]

Quoted:
Roll pin starters and punches make mistakes a lot less likely, especially the starters.


Ditto.  I built my first lower recently and not one scratch with the right tools and a bit of electrical tape.    Oh, and a bit of patience.
Cheers,
cc
4/12/2008 3:14:04 AM EDT
[#16]
Yeah, I need to get out of tightwad mode and buy a set of roll pin punches....
4/12/2008 6:47:43 AM EDT
[#17]
The ease of driving the roll pin also depends on the lower and pin combination. I had to pound the Stag/CMT roll pin into my NoDak lower the entire way. It never got any easier. I took a long time to do since I was trying to be careful. That sucker is not coming out any time soon.

Also, I got scratches on my lower from the roll pin punch (yes, I bought the specific tool) slipping off the roll pin. That little bump on the end of it peened my finish a bit.
4/12/2008 7:11:42 AM EDT
[#18]

Quoted:
Roll pin starters and punches make mistakes a lot less likely, especially the starters.



+1
4/12/2008 7:19:25 AM EDT
[#19]

Quoted:
Roll pin starters and punches make mistakes a lot less likely, especially the starters.


yup, helps a lot.
Put a drop of oil in the hole too, so you don't have to whack the pin so hard.
4/12/2008 7:46:41 AM EDT
[#20]
I always crimp the end of the pin with a pair of wire cutters and then chamfer with a file. Lube the hole and use a roll pin punch.
4/12/2008 9:37:48 AM EDT
[#21]

Quoted:
I always crimp the end of the pin with a pair of wire cutters and then chamfer with a file. Lube the hole and use a roll pin punch.


Thats exactly how I do all of mine. Makes Installing the pins so much easier.
4/12/2008 9:57:07 AM EDT
[#22]
You guys hate roll pins. I can't stand cotter pins. And im not talking about the one that keeps the firing pin secured. I can do that by hand. If you had to do the finger gymnastics I do everyday with cotter pins you'd smile at roll pins no matter how rusty or small.
AR Sponsor