The stock tube is the standard 4 position. |
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The nicest comment I can muster about that selector is that it looks ghey and does not live up to my vision of Colt. Hopefully it works better than it looks. I wonder why the change in such standard parts? I hope my inbound 6920 has a heteroselector on it. eta: Congrats on a fine new rifle. Lucky dog. |
Then What 20 inch barrel would be needed? This is from SAW web site. Barrel A.. Part #: SA02023 Description: BARREL & FRONT SIGHT ASSY M16A4, 1/7 GOVT - 20in CHROME LINED Or Barrel B.. Part #: SP63417 Description: BARREL & FRONT SIGHT ASSY M16A2/A3, 1/7 GOVT - 20in CHROME LINED My guess if the barrel on a 6721 has a F FSB then barrel A? |
I believe A has the M4 feedramps and the "F" marked FSB and B does not. Don't be afraid to email and/or call Tina at SAW. They will make sure you get the correct one. |
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I received my 6721 yesterday- a welcome addition to my 6520 ans 6920. The fit and finish on the Tac 6721 is the best out of all three of my colts. Here is the skinny on the features: LE Markings M4 feed ramp and barrel, extension H Buffer 4 Pos stock "M4" and T-marked Diemaco Upper Colt Bolt (full circle carrier) It has the new safety selector as shown above. Range report later this week Edit to add it came with an F front sight base |
Bummer, from SAW "No 20 inch gov barrels inbound from Colt till mid 07" Any body know of an other source for a Colt 20" goverment style barrel w/F FSB? |
www.autoweapons.com They had 2 uppers f marked front sight i bought last year maybe they have more now !! |
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I recently aquired a 6721 last week and it has the funky up grade sellector switch. Barrel made on 09/06, F marked FSB, Colt marked BC and M4 marked upper receiver with RAS rail t markings and H buffer included. The 6721 came in fantastic jet black finish and belive its better that my 6920 overall. I replaced the handgards with Colt M4 style and its a keeper. I found that the 6721 sells for about 150.00 less than the 6920 in this area and is a overall better deal for the money. |

