AR upper and lower receivers


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SkinnyGrey
January 3, 2012, 07:44 PM
I have a AR 15 S&W M&P lower. I was thinking of purchasing a Stag upper. If I order the upper, can I attach the upper to the lower myself? Will it work right away or is there more sophisticated gun smithing involved?

Any help is very much appreciated.

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kfgk14
January 3, 2012, 08:56 PM
Nope. Pop the pins, drive them home with the new upper and off you go.

tyeo098
January 3, 2012, 08:59 PM
AR-15's are plug & play!

make sure you get the complete upper with the bolt carrier group

Also, I see you are in New England, make sure your upper is compliant when attached to your rifle (1 evil feature?) otherwise you'll end up on the wrong side of the jury bench.

Jeff H
January 3, 2012, 09:00 PM
If I order the upper, can I attach the upper to the lower myself? Will it work right away or is there more sophisticated gun smithing involved?

nope.

Are you buying a new bolt carrier group? If you have shot the S&W a lot, you should get a new bolt since the old one will have worn in with the S&W upper and barrel.


Edit: Tye beat me to it.

tyeo098
January 3, 2012, 09:10 PM
Some people consider the bcg as part of the upper, and some companies do the same.

If you get a flat-top make sure you get some kind of iron-sight or optic.

If you are still shopping for uppers, check out Del-ton. They make great stuff from the same materials/testing as Bravo Company Machine. Very cost effective for a first rifle too.
Unless you have been shooting ar-15's for years, the rifle will out perform you for the next 10 years.

kfgk14
January 3, 2012, 09:10 PM
Oh...wait. Check all local laws before purchase. Your state(s) of residence see ownership of two separate uppers and lowers that could potentially be combined in an illegal fashion as intent to construct or something like that (in some cases) and could nail you for possession of an evil black nuclear WMD assault weapon of scariness and puppy-kicking. Maybe just an assault weapon. But to hear some of the gun-grabbers talk, my previous statement is correct.

tyeo098
January 3, 2012, 09:17 PM
NY is a no-fun-rifle state. Not sure about CT's AWB status.

Look for uppers in a "post-ban" configuration, like this Del-ton (I dont work for them, I swear!):
http://www.del-ton.com/AR_15_Barrel_Assembly_p/dt1015.htm (16'' flat top)
http://www.del-ton.com/AR_15_Barrel_Assembly_p/dt1011.htm (20'' flat top)
[They both have bcg's included in their prices]

"Post-ban" upper means they dont have a:
Flash hider (because the legislature thought is hid the flash from observers, not from the shooter as it actually does)
Bayonet Lug (because of all the drive-by bayonettings)

Also (depending on your local laws) make sure your magazines are 10rds or less (or pre-ban, but thats another story)

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