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| AR Technical Discussion Dive into the details and specifications |

04-15-12, 18:36
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Fixed front sight permenant removal
I have a Stag 2T with a fixed front sight and a Bushnell TRS-25 red dot.
My 7 year son old claims that seeing the front sight inside the red dot is distracting (the purpose of the rifle is so he can hunt this fall).
I don't think I can simply remove the front sight and leave it that way since the gas tube goes into it.
What would be necessary to remove the front sight (permenantly) and have a funuctional "optics ready" appearence?
 Thanks.
P.S. I would rather not cut off the existing front sight, just in case that is suggested.
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04-15-12, 18:44
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It'd be far easier to just teach him to shoot through the whole thing with both eyes open and deal with it. However if you do a search for "FSB shave" you will find the info needed to cut the top portion of the FSB off and clear the way.
**just saw your note at the bottom about not wanting to cut the FSB** FSB's are mounted with tapered pins and the FSB is fitted to the barrel, cutting it is the best low cost way to deal with your issue.
Last edited by AKDoug; 04-15-12 at 18:46
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04-15-12, 18:45
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You will need to remove it and replace: t with a flatop gas block
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04-15-12, 21:04
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No he doesn't. All he needs to do is cut shave down the gas block especially since we know it is a hunting rifle for junior and it doesn't need iron sights.
Quote:
Originally Posted by crcjk
You will need to remove it and replace: t with a flatop gas block
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04-15-12, 22:34
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unscrew the front sight post.
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04-15-12, 22:52
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Quote:
Originally Posted by CDW4ME
What would be necessary to remove the front sight (permenantly) and have a funuctional "optics ready" appearence?
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What you would need is a couple tools:
Taper pin punch
http://www.brownells.com/.aspx/pid=2...ER-PIN-STARTER
Bench Block
http://www.brownells.com/.aspx/pid=2...HT-BENCH-BLOCK
Small punch for gas tube roll pin. This is my favorite but overkill for one time use.
http://adcofirearms.com/itemdetails_...orynumber=1364
A slim wrench for the FH and a pair of pliers to get the gas tube out.
You can knock out the taper pins, gas tube pin, take off the FH, remove the gas tube and put on a clamp on railed or Lo-profile GB. You can keep the old FSB if you want to put it back to original configuration later. Pinning the new GB doesn't sound necessary to me but ADCO is who I have used and recommend.
If you don't care so much about pretty, or getting pins back in easily later on, then you can use regular pin punches from any hardware store. Plenty of videos on Brownell's to show you how. Pretty easy job.
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04-15-12, 22:55
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Quote:
Originally Posted by Tweak
unscrew the front sight post.
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Theres a thought.. 8)Ron
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04-15-12, 23:00
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Quote:
Originally Posted by Tweak
unscrew the front sight post.
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But the FSB is still there
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04-15-12, 23:35
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Yes, but the ears might not bother him if the post is gone. I know my kids didn't like the red dot sitting on top of the front post either at first. They learned that if they were looking at it they weren't concentrating on the target. It didn't take long for them to ignore it.
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04-15-12, 23:41
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I'd vote for shaving the FSB as well. If you just can't bring yourself to do that, knock it off there and install a low profile gas block.
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04-16-12, 08:11
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My first choice would be to get him to the range more between now and then to teach him to look at the target and not at the front sight. I suspect you spent a lot of time having him look through the thing at home and now he's fixated on the thing. We see this with a lot of new shooter/first-time-buyers who can't stop playing with their new toy at home and announce, often without having ever fired a shot, that the FSB is "in the way". Eye focus should be on the target, and with that eye focus the FSB is a non-issue.
However...
He's a kid and it may make your life easier to accommodate him. Cut the FSB front and rear with a Dremel and fiberglass cut-off wheel and then round off the edges and hit the exposed surfaces with black grill paint.
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04-16-12, 12:03
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Don't cut it.
Remove it and replace it with a low pro gas block.
The FSB and barrel are a unique set and if you ever want to go back to FSB it's far more sanitary to have saved the original FSB.
If cosmetics are important, choose a low pro that is long enough to cover the FSB scars.
Midwest Industries has some.
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04-16-12, 12:37
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Quote:
Originally Posted by sewvacman
What you would need is a couple tools:
Taper pin punch
http://www.brownells.com/.aspx/pid=2...ER-PIN-STARTER
Bench Block
http://www.brownells.com/.aspx/pid=2...HT-BENCH-BLOCK
Small punch for gas tube roll pin. This is my favorite but overkill for one time use.
http://adcofirearms.com/itemdetails_...orynumber=1364
A slim wrench for the FH and a pair of pliers to get the gas tube out.
You can knock out the taper pins, gas tube pin, take off the FH, remove the gas tube and put on a clamp on railed or Lo-profile GB. You can keep the old FSB if you want to put it back to original configuration later. Pinning the new GB doesn't sound necessary to me but ADCO is who I have used and recommend.
If you don't care so much about pretty, or getting pins back in easily later on, then you can use regular pin punches from any hardware store. Plenty of videos on Brownell's to show you how. Pretty easy job.
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Thanks for the information and links.
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04-16-12, 21:26
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I'm with rob_s (holy crap  )
To illustrate the point, completely cover the front lens of the RDS. Have him keep both eyes open and shoot. It should be clear at that point that there is nothing in the way of anything.
I always do this with newer shooters as a way of orienting them to red dot sights.
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04-16-12, 21:38
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I couldn't do it.. Just couldn't.. It would be like like cutting the spinners of the vette hubcaps.. Ron
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"Never sacrifice a real FSB for rail space" - Lao Tzu 300 B.C.E"... markm
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04-17-12, 19:24
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Cut it.
Hacksaw. Bench grinder. Hand file. Rustoleum.
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04-17-12, 19:41
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If this is the optic you are referring to...
Then you definately need a riser so that the front sight isn't completely obscuring the target. Here's one that I found on the errornet...
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04-18-12, 12:29
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The red dot sight is mounted on a medium height riser which provides absolute co-witness (my preference) with the fixed sights.
The front sight being visible in the red dot is the problem.
My other son (age 8) had the same complaint and when I let him shoot a AR with a folded down front sight (Magpul) his shooting consistency improved. Apparently it is easier for them if they only have a red dot and target to focus on.
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04-20-12, 04:12
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You could try a old trick of putting black or white tape on covering the FSB blocking the ears and FS post. No cost to see if it helps correct the issue. I don't know if it will work in you situation.. but I've had it work training some soldiers in use of optics. Other wise its your gun make it do what you want/ need. I've thought about cutting one off and shaving to a gas block.. to run a rifle rail.
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