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Posted: 3/28/2005 3:48:13 PM EDT
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I've just started down the road of building my first AR, and I want to build it into a CMP service match rifle. However I also would like another A2 type rifle for plinking and informal shooting too, so I figure I'll get both a match upper and a standard 20" upper and swap them onto my lower as needed. Is this a bad idea? If not too bad as long as not done often, how much would be a bad thing? Eventually I'm planning on adding building/getting another complete lower for the "standard" rifle, but in the beginning it would be easier on the pocketbook to go with the two uppers, one lower solution. Thanks, Dave |
That's how I did it with only one pre-'94 lower. It had about four or five uppers for it with bayonet lugs and FHs. Keeping a bolt with a barrel is a good idea, but you could probably get away with swapping them. |
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When a gun is broken in and/or natural use puts wear on the gun, each individual barrel leaves its own unique wear patterns on the bolt/chamber. These barrel "fingerprints" are not a bad thing. A new bolt that was broken in with a new barrel will actually operate together more smoothly and accurately if that same setup is kept, as the two systems will be tuned to each other. Imagine it as wearing the same pair of leather gloves everyday for years. Then someone else goes to put them on. They fit, but they dont have the same feel as they do for you. The same is the case here. Since you are building a marksmanship rifle, and accuracy is key, the small reduction in accuracy would be something to be avoided. Each barrel needs its own chamber/bolt assembly. As long as you're sure to do this, switching out COMPLETE uppers is no problem. -G |
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