My C8A3 build

Dilligaf - your EOtech takes up the entire top rail so there is no room left for the BUIS or can it be slid forward a couple of notches to leave room at the rear?

Interesting, and good to know. I have been thinking of an EOtech for a future maybe someday rifle but I personally would want a BUIS for a sight that depends on batteries to function. No, I will probably never need to use it due to failure but....
 
Stoner99 said:
I guess I did not articulate what I was getting at properly, I apologize. It's not reliability but by having a SA BCG being lighter I was told that it wears out the upper faster do to the BCG being lighter weight and travels faster during the action. If that makes sense.
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It does sound plausible, but in this case it's not true. Keep in mind there are a very few ways to make an AR15 well, and very many ways to make an AR15 poorly. The proliferation of parts for this type of rifle and the relative simplicity of the design is both a good thing and a bad thing. A little bit of knowledge is a dangerous thing. There are many combinations of components (franken-guns) that don't work well together and a nearly infinite supply of inconsistent or substandard parts out there (as well as lots of very good components that don't play well together). In some cases I'm sure extra weight back there may seem to make a difference. In reality, with quality components, a semi auto rifle is very reliable and relatively easy to make work.

We are very slow and deliberate. We took thirty years to release a commercial rifle! We have a very robust and talented engineering capability and make good rifles. I can assure you we tested all aspects of the design before delivering them to you.
 
DILLIGAF said:
Thanks Matt, I've dropped the idea of finding a "D" marked BCG after today flawless range trip. I do have a Spikes Tactical ST-T2 Heavy Buffer and JP buffer spring. what are your thoughts on those ?
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They probably won't hurt, but (not surprisingly) we feel that the rifle was ideal as it was delivered. Of course we can't guarantee performance with parts we did not manufacture or certify for use. In a semi-auto only rifle there will be no measurable increase in performance, and therefore no benefit. Your rifle would work fine with a plastic spring guide or an empty buffer. The buffer dampens carrier bounce which has no impact on semi auto operation. We regularly fire two or three mags through rifles with empty buffers on police armourer courses to demonstrate this.
 
Bolivar said:
Dilligaf - your EOtech takes up the entire top rail so there is no room left for the BUIS or can it be slid forward a couple of notches to leave room at the rear?

Interesting, and good to know. I have been thinking of an EOtech for a future maybe someday rifle but I personally would want a BUIS for a sight that depends on batteries to function. No, I will probably never need to use it due to failure but....
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On mine, I was able to fit a EXPS3-4, a G33 magnifier and a ARMS 40L on the upper without any issues. the CC Troy won't fit.
An ACOG with a 40L fits too.
 
COLT CANADA said:
They probably won't hurt, but (not surprisingly) we feel that the rifle was ideal as it was delivered. Of course we can't guarantee performance with parts we did not manufacture or certify for use. In a semi-auto only rifle there will be no measurable increase in performance, and therefore no benefit. Your rifle would work fine with a plastic spring guide or an empty buffer. The buffer dampens carrier bounce which has no impact on semi auto operation. We regularly fire two or three mags through rifles with empty buffers on police armourer courses to demonstrate this.
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The C7a2 use a rubber end piece on the buffer. Sometimes that buffer impacts too hard against the rear of the chamber it's in and mushrooms. I was under the impression that this mushrooming happens when there is some kind of failure (like too much pressure) and the intent of the mushrooming was in order for the sides to catch on the buffer return spring and stop it from hammering the bolt too hard (when it happens you have to hit the forward assist a few times to properly seed the bolt carrier group to fire).

Am I wrong and you're saying firing a C7a2 without recoil buffer wouldn't damage the bolt carrier group or anything? If so why the mushrooming?
 
GuiltySpark said:
The C7a2 use a rubber end piece on the buffer. Sometimes that buffer impacts too hard against the rear of the chamber it's in and mushrooms. I was under the impression that this mushrooming happens when there is some kind of failure (like too much pressure) and the intent of the mushrooming was in order for the sides to catch on the buffer return spring and stop it from hammering the bolt too hard (when it happens you have to hit the forward assist a few times to properly seed the bolt carrier group to fire).

Am I wrong and you're saying firing a C7a2 without recoil buffer wouldn't damage the bolt carrier group or anything? If so why the mushrooming?
Click to expand...

Not without a buffer - without the weights inside. Buffer only does buffering on bursts. For semi auto, the buffer keeps the spring in place.

The only mushrooming I have ever seen was traced back to soldiers cleaning with chemicals not on the approved lubrication list.
 
Has anyone seen the hogue OD green stuff ? Will it match up the the handguard ?

Im thinking of these 2 item...

od_green_buttstock_right.jpg
 
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