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Posted: 2/7/2006 7:36:26 AM EDT
What are the T markings on top of uppers and barrel shrouds used for? Have seen some that come with them and was just wondering what their function is.
Link Posted: 2/7/2006 7:37:46 AM EDT
Link Posted: 2/7/2006 7:41:52 AM EDT
As troopers have laser devices, red-dot optics and NV stuff, which are at times removed and later replaced the #s make it easy to index where the device was position, which can eliminate the necessity of re-zeroing.

Link Posted: 2/7/2006 11:26:17 AM EDT
Thanks Mike, knida what I thought but wanted to make sure.
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