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Posted: 3/15/2017 3:21:05 AM EDT
[#1]
Put it on a concrete floor then smack it. It worked for me when I couldn't get one apart. My bench had too much give in it and was absorbing some of the energy.
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Posted: 3/15/2017 3:24:00 AM EDT
[#2]
Bigger hammer.
They WILL come out. |
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Posted: 3/15/2017 8:32:43 AM EDT
[#3]
The pins are tapered. make sure to push them out the correct way, from small to big.
I hammer and punch is the usual method. If you have access to a press that will make stubborn pins come out much easier. |
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Posted: 3/15/2017 8:39:52 AM EDT
[#4]
Don't be scared.
Hit it like you mean it. 
I use a 2.5 lb sledge |
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Posted: 3/15/2017 9:28:45 AM EDT
[#5]
Quote HistoryQuoted:
The pins are tapered. make sure to push them out the correct way, from small to big. A little heat will help but is generally not necessary. Show it who's running shit over there. |
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Posted: 3/15/2017 10:09:52 AM EDT
[#6]
Heat sometimes helps. Sometimes the opposite-freezing it in the freezer-helps them come out better. A spring-loaded center punch can "shock" load the pins & break the friction to get them moving. The worst ones I have encountered were factory Colts. Those damn things were put on by genetically mutated gorillas. Horrible to remove.
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Posted: 3/15/2017 10:17:52 AM EDT
[#7]
Use a torch and get the FSB hot. Use a large mallet
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Posted: 3/15/2017 3:40:19 PM EDT
[#8]
One of the "Tricks" is to use a Nail Set Punch to remove them. The "cupped" end helps stay on the pin.
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Posted: 3/15/2017 3:51:23 PM EDT
[#9]
as a test, i hit them with a 16 oz hammer many times
using a small socket as a support on a concrete garage floor nothing got out my short handled 2.5# sledge one hit and they moved |
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Posted: 3/15/2017 4:17:25 PM EDT
[#10]
My method is:
Large hammer. Not a claw hammer but a sledge hammer, 2-2.5 lbs or so. Large punch. I use a large steel punch to get them started and then a smaller cupped punch to drive them out once they move. Hard wood or plastic blocks that prevent any wobble of the FSB. Wobble is wasted energy. Solid surface for backing. Cushioning the impact is bad. If you hit them like you mean it they'll come out. If you use a puny hammer or little taps you'll flatten the pins before you'll drive them out. Even BCM pins come out without much trouble now that I've figured it out. |
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Posted: 3/15/2017 4:33:23 PM EDT
[#11]
I believe LMT uses dowel pins, not taper pins, so you will fight them the whole way.
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Posted: 3/15/2017 4:34:21 PM EDT
[#12]
yep
brownells block on concrete floor use a BIGGER fuckn hammer one heavy smack will knock them loose 50 smaller wacks fuck it up . |
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Posted: 3/15/2017 6:02:48 PM EDT
[#13]
You didn't hit them right. Most likely culprit is the sight block that you're using, and your bench. It needs to be supported very solidly, and then struck correctly. Believe it or not, the automatic center punches work very well for loosening them. You could also use a hydraulic press to push them out if you're uncomfortable. But, more force is applied in a proper hammer blow than smaller presses can manage.
I highly recommend against sending it out. Just because you can do it. |
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Posted: 3/15/2017 6:15:09 PM EDT
[#14]
This is my Go To Hammer when the 1 pounder won't get it done. This wasn't getting the job done either. I wasn't hitting it like I had a vagina or anything, maybe I'll step up to the 4 pound hammer next and use my nail set as a punch (thanks for the reminder PursuitSS). If I were to use heat would I be able to punch them out without using the block (don't want to melt my brand new $50 bench block
)
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Posted: 3/19/2017 8:58:54 PM EDT
[#15]
Well, I finally got them out. I sprayed the pins with some Lucas Tool Box Buddy before I punched them out, then used a nail set (which I broke) and my 4 pound hammer, but they finally came out. I then had to heat the FSB itself and hammer it to get off, but it came off as well at the expense of the gas tube (which I had a spare on hand). Got everything on and snugged up. Got the FSB pins back in (again that was a complete bitch). I slide the BCG into the upper and it won't go. The gas tube is off center
 . I would assume the barrel nut is slightly off center allowing the tube to pass through the hole at the top of the receiver, but pushing it off the side ever so slightly.
I'm taking a break, this thing is seriously pissing me off at this point. Anyways thanks for the help guys.  
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Posted: 3/19/2017 9:08:37 PM EDT
[#16]
you can bend the gas tube a tad in the reciever to align it
gas tube alignment tool but its best if the tube aligns properly straight thru the barrel nut |
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Posted: 3/19/2017 9:09:14 PM EDT
[#17]
Take a break, kill some beers, come back later.
If you are careful, you can bend the gas tube with a large flat blade to clear the gas key. Or break it down, and redo later. Good luck. |
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Posted: 3/20/2017 1:00:25 AM EDT
[#18]
Quote HistoryQuoted:
Well, I finally got them out. I sprayed the pins with some Lucas Tool Box Buddy before I punched them out, then used a nail set (which I broke) and my 4 pound hammer, but they finally came out. I then had to heat the FSB itself and hammer it to get off, but it came off as well at the expense of the gas tube (which I had a spare on hand). Got everything on and snugged up. Got the FSB pins back in (again that was a complete bitch). I slide the BCG into the upper and it won't go. The gas tube is off center . I would assume the barrel nut is slightly off center allowing the tube to pass through the hole at the top of the receiver, but pushing it off the side ever so slightly.
I'm taking a break, this thing is seriously pissing me off at this point. Anyways thanks for the help guys. 
What free float handguard are you using? |
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Posted: 3/20/2017 2:18:26 AM EDT
[#19]
I just use a screw Phillips screwdriver that is the same diameter as the gas tubes are to line things up.
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Posted: 3/20/2017 2:31:02 AM EDT
[#20]
Quote HistoryQuoted:
You don't need to spend money on an alignment tool. A punch or a drill bit that fits snug in the gas tube hole works perfectly. Just make sure to slip the shank, not the cutting end, of the drill bit in the upper. I've recommended the drill bit method to some folks and they actually put the cutting end in and then got mad at me. Didn't think I needed to explain that one!
What free float handguard are you using? 
I'm using a LaRrue free float. I'm one of the few that actually likes the cheese graters. |
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Posted: 3/20/2017 2:35:41 AM EDT
[#21]
Looks like when I was initially taking the FSB off I hit the gas tube with my hammer and kinked it somewhat causing the issue I was describing. I swear I know what I'm doing guys
. Ordered a new tube, should be here in the next few days. Thanks again for the help!
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