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There are a number of Commercial Spr. guides to choose from, several seem to be of good quality.. The GI spr. guide serves the purpose that was good enough for the Armed Forces. The Commercial guides come in various shapes and claims of superiority. .
The purpose of the guide is to offer a place to latch the mag into the rifle and to help align the recoil spring to the Opt Rod during firing, what do you think the Commercial Guides do better?
The thing to lookout for when fitting a Commercial guide is one that is to thick in Dia.. this over size will cause coil binding, which will leave easy to see rings around the guide itself. This can be corrected by reducing the dia. of the guide. A loose fitting guide is better than an oversize one. An over sized guide also will cause flat surfaces to appear on the outside of the spring coils, weakening the spring prematurely..
Since there are Commercial recoil springs now available it is very important to check your new Guide for fit, do it without lube. The Guide should slip fit at the tightest, drop fit is what you are after. This is one area where a good amount of lube is beneficial, it is not necessary to put lube int the Opt Rod Spr. housing. It is also a good idea to change recoil springs once a year, or every 3,000 rounds fired. Art
The purpose of the guide is to offer a place to latch the mag into the rifle and to help align the recoil spring to the Opt Rod during firing, what do you think the Commercial Guides do better?
The thing to lookout for when fitting a Commercial guide is one that is to thick in Dia.. this over size will cause coil binding, which will leave easy to see rings around the guide itself. This can be corrected by reducing the dia. of the guide. A loose fitting guide is better than an oversize one. An over sized guide also will cause flat surfaces to appear on the outside of the spring coils, weakening the spring prematurely..
Since there are Commercial recoil springs now available it is very important to check your new Guide for fit, do it without lube. The Guide should slip fit at the tightest, drop fit is what you are after. This is one area where a good amount of lube is beneficial, it is not necessary to put lube int the Opt Rod Spr. housing. It is also a good idea to change recoil springs once a year, or every 3,000 rounds fired. Art