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[ARCHIVED THREAD] - New BCG

Posted: 7/28/2020 3:48:59 PM EDT

I have a A2 upper with really a unknown round count, but I think around 2000 rounds though.. I have a brand new BCG. Do I have to check headspace you think? I have built alot of ARs using used parts and have never had a problem ever or checked Headspace in an AR before.. But am getting older now and more responsible,LOL

Thanks

Posted: 7/28/2020 3:54:41 PM EDT

[#1]

New bolt in used upper, I don't worry about it.

Used bolt in used upper, I always check it.

YMMV

Posted: 7/28/2020 4:55:36 PM EDT

[#2]

That is kinda what I was reading here. But there are conflicting views just like in every question. Usually I just fire a round, feel for any anomaly's, look the brass over good after firing and go to town.

Thanks

Posted: 7/28/2020 5:31:28 PM EDT

[#3]

Checking headspace is always recommended.

Posted: 7/28/2020 5:49:02 PM EDT

[#4]

I've personally never checked headspace when putting a new bolt in a used upper. But I always check if new/new.

It's probably a good practice in general but I'd imagine if it's a used upper and a good quality bolt you'd be fine. But might as well check to be safe, especially if you or a buddy have the tools. I use the go/no-go gauges I picked up from Brownells years ago.

Posted: 7/28/2020 7:20:39 PM EDT

[#5]

What gauges are you running for 556 chambers?

@osprey21

Posted: 7/28/2020 11:01:50 PM EDT

[#6]

It was always taught not to switch bolts between rifles when I was in the Army. Most of that was due to not knowing how wore out the rifles were or what the round counts were. While it IS a good idea to check head space, you should be okay with only 2000 round count on your rifle.

Posted: 7/29/2020 5:24:12 PM EDT

[#7]

Thanks all.

[ARCHIVED THREAD] - New BCG

AR-15 » A2 Builds

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