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new rail extension finally arrived... question?

1928 Views 10 Replies 6 Participants Last post by  smitty185, 
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My 'gift pack' from FNH finally arrived! I got the MI Rail Extension and four more mags. SWEET! So... heading out tomorrow for some deer hunting and I just sighting in my irons and my scope. In order to install the rail extension, I need to essentially remove the barrel, assemble the extension, and put it all back together. So my question (and I'm pretty sure I already know the answer...) is - will my sights and scope require re-zeroing after re-installing the barrel? I don't really have time to get the range again before I head out and our deer camp has a rule that there is no shooting before opening morning...

Not a big deal if I have to wait but it would have been awesome to have it put together before hunting. I have a GG&G XDS-2 bipod that mounts on the bottom rail and to leave room, my foregrip is slid back farther than I'd like... I may just not use the bipod for now...
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smitty185 said:
I need to essentially remove the barrel, assemble the extension, and put it all back together. So my question (and I'm pretty sure I already know the answer...) is - will my sights and scope require re-zeroing after re-installing the barrel? I don't really have time to get the range again before I head out and our deer camp has a rule that there is no shooting before opening morning...

Not a big deal if I have to wait but it would have been awesome to have it put together before hunting. I have a GG&G XDS-2 bipod that mounts on the bottom rail and to leave room, my foregrip is slid back farther than I'd like... I may just not use the bipod for now...
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The SCAR design is so that the removal and re installation of the barrel is with in 1MOA if you follow the torque sequence, but I personally recheck and so far mine fall with in that. If I was going hunting I would have the rifle zeroed with the ammo I was using for the hunt and if I pulled the barrel I would recheck zero, hours of sitting in a cold tree stand wanting for a shot and missing pisses me off.:wink:

http://fnforum.net/forums/fn-scar-17s/37905-inch-pound-not-foot-pounds.html
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