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Old July 22, 2006, 01:43 PM   #1
Doubletaptap
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Another Ar 15 question

I have a Bushmaster Ar 15, it's the .223 Varmint Special.
XM15 E2S

I want to order a trigger assy for it and have noticed there' a small pin and a large pin and also a short pin and long pin version available.
I have no idea what the Bushmaster is? Anyone help?
Thanks, George
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Old July 22, 2006, 01:47 PM   #2
Edward429451
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The Bushmaster is the small pin.

The long pins are the ones that take the C clips so the pin wont walk out under recoil (I think). My pins have never walked on me.

Edited to correct typo. Hate it when brain says one thing but fingers type another.

Last edited by Edward429451; July 25, 2006 at 09:40 AM.
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Old July 22, 2006, 09:39 PM   #3
DnPRK
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Bushmaster is SMALL pin (0.154). Only Colt made large pin lower receivers (0.170) for a period of time.
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Old July 22, 2006, 11:06 PM   #4
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Concur with dnPRK. Only Colt made the large pin guns. Buy the small pin for your Bushy.
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Old July 23, 2006, 10:43 AM   #5
FRANK1669
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Contact the trigger assembly munufacturer if they don't know what fits what I wouldn't buy from them Just a thought
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Old July 23, 2006, 11:32 AM   #6
Toolman
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A Rock River national match trigger will work also (small pin). I put one in my Bushy XM15 and it works great. I love my Bushmaster, but I bought the RR NM trigger because it was a little cheaper than the Bushy. Whatever trigger you get, make sure you perform the safety test.
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Old July 23, 2006, 06:31 PM   #7
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I recommend Compass Lake Engineering's trigger group. I bought my Bushmaster NM Course gun from Frank and Theresa White up on commercial row at Camp Perry one year (which is where they will be through mid-August). The trigger is fully adjustable and reasonably priced. On two occassions officials weighing triggers at the matches remarked that Frank's trigger does the best job of "feeling lighter" than it actually is. They get to try lots and lots of triggers. Full details and installation instructions are on the Compass Lake web site.

JMHO, but I won't feel badly if you make a lesser choice, as we may compete at a match one day.

Nick
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Old July 23, 2006, 07:10 PM   #8
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Rarely pins walk under full auto use. The e clips stop this. Tipacaly not needed. Unless you have a FASSSST finger.
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Old July 24, 2006, 06:10 AM   #9
CDH
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Unclenick gives good advice.

I've installed Frank White's triggers on both my Bushmaster DCM and my Bushmaster Dissipator. Those elegant but simple triggers transformed both rifles into a couple of really enjoyable rifles to shoot.

Carter
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Old July 24, 2006, 11:06 PM   #10
Doubletaptap
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Unclenick, if you're competing in matches I doubt I'll ever see you!!
I'm just learning the AR15 and so far you all have helped a bunch!!!
I hate the 2 stage trigger and it already is affecting my shooting. The rest of the rifle is excellent!!!!!
Thanks for all the help!! I will check out some triggers!!!
George
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Old July 25, 2006, 03:05 PM   #11
Unclenick
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Doubletap,

You may learn to love two-stage triggers with this one. The reason it can be made to feel so light is it allows you adjust the portions of the trigger weight in the first and second stages independently . By puting 2/3 to 3/4 of the total trigger weight in the first stage, your logarithmically sensitive trigger finger nerves feel very little additional pressure when taking up the second stage to release the shot. The design is for the 4 1/2 lb. minimum allowed by match rules, and that is probably a good lower limit for safety.

A two-stage trigger has the safety advantage that as long as the first stage isn't completely taken up you know you aren't putting inadvertent pressure on the second stage. That's the cause of most inadvertent discharges in high adrenaline situations.

Nick
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