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Posted: 5/23/2008 2:57:49 PM EDT
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I am in the process of completing the parts list for my first build. I would like to use a 16" heavy barrel with a rifle length (free float) rail system. Thus causing me to use a low profile gas block. I would like to use this Olympic Bull Barrel (links below). www.olyarms.com/index.php?page=shop.browse&category_id=56&option=com_virtuemart&Itemid=37 www.midwayusa.com/eproductpage.exe/showproduct?saleitemid=614688&t=11082005 Questions 1. What gas block can be used with this barrel? I called Olympic directly and was told the diameter at the gas block is .980. I cannot seem to find any gas blocks for this diameter. The one offered directly from Olympic does not denote if it is low profile and can be used under a rail system. 2. Midway list's this barrel in .223 while Olympic shows this barrel to only come in 5.56, unless you move to the UltraMatch group which this barrel is obviously not, based on the price. Could Midway be mistaken? 3. With a diameter of .980 or greater will this barrel work with a low profile gas block under a rifle length rail system? 4. Has anyone used this barrel or other Olympic barrels, and have you been happy with them. I have heard rumors of Olympics inconsistent quality controls. Thanks in advance from a rookie builder... Here is my parts list so far. Please let me know if you see any issues. Upper Mega Machine Upper Mega Machine Charging Handle LMT Bolt Group Stag Arms Upper Parts Kit Olympic Bull Barrel 16" Low Profile Gas Block??? MI Rifle Length Free Float Rail System MI Flip Up Sites Lower Mega Machine Gator Lower Stag Arms Lower Parts Kit CAA 6-Position Stock Ergo Ambi Grip Magpul PMags |
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Oly makes a decent barrel, their QC on their lowers has been pretty spotty though. I would avoid a bull barrel at all costs! They're way too friggin heavy. Especially on a 16" gun. A bull barrel is no more accurate than a pencil barrel. Let me repeat that: You will get no better accuracy out of a bull barrel vs. a pencil barrel of equal quality! You've got a nice parts list there, don't screw it up with the wrong profile barrel. Go medium contour or lighter and, definitely, definitely, definitely go mid gas on a 16" barrel. There really is no other choice. Trust me. I've been there. 
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