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Old November 20th, 2017, 04:24 PM #11
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Quote:
Originally Posted by 2ndltsdad View Post
Lube ? its been sitting for two years ?


Good point.
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Old November 20th, 2017, 04:29 PM #12
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Quote:
Originally Posted by 2ndltsdad View Post
Lube ? its been sitting for two years ?


It was still significantly lubed according to how Chad teaches in his class. Though, I will de-grease and re-lube prior to next session.


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Old November 20th, 2017, 04:44 PM #13
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In my experienced BCM uppers are generally under gassed compared to other options available in the commercial Market. This means was something like springco spring or an A5 buffer you may cause the rifle to behave as if it is under gassed.

You can use a carbine buffer and carbine spring in an A5 buffer tube you simply have to space it out with 1" worth of quarters to get the proper bolt travel. Jist do the buffer travel test we did in the class.

I would ditch the BCM extractor spring as well and install a Colt Gold Spring. No donut/oring is used with the Colt spring.
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Old November 21st, 2017, 12:59 PM #14
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Quote:
Originally Posted by clandestine View Post
In my experienced BCM uppers are generally under gassed compared to other options available in the commercial Market. This means was something like springco spring or an A5 buffer you may cause the rifle to behave as if it is under gassed.

You can use a carbine buffer and carbine spring in an A5 buffer tube you simply have to space it out with 1" worth of quarters to get the proper bolt travel. Jist do the buffer travel test we did in the class.

I would ditch the BCM extractor spring as well and install a Colt Gold Spring. No donut/oring is used with the Colt spring.
Thank you very much! I'll hopefully have this all together so I can test out next week.
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