Question Regarding AR15 Upper Lowers

[LDRider]

I am contemplating putting together a Palmetto Arms Upper & Lower.

Is it really as simple as plugging in a couple of pins as if you were just doing a break down for cleaning?

I'm looking for my first AR and looking for something to use in the 200yds or less range.

I'm obviously new to the AR scene and would appreciate any comments.

Thank you,

Jeff

[jcoosi]

If you buy complete upper and lower assemblies then yes its just attaching them together.If you buy stripped upper and lower its a little more detailed.

[Dolomite_supafly]

+1

The AR is the most versatile platform on earth. You can have one lower and literally dozens of uppers in various configurations for various jobs. You can even have them in different calibers as well. You can have uppers in 22 as well to make shooting cheap.

But yes, to replace a COMPLETE upper is two pins and 20 seconds.

Just to make a suggestion because you are new. Buy something with either a 9 twist or an 8 twist barrel with 9 twist being the first choice. Forget the 7 twist, at least for now, because it isn't as versatile as the 9 or 8 twist and is a little more advanced.

But other than that get what you want. And the best thing about AR's is the are all made to the same standard. This means you can buy ANY part and put it on ANY AR with the exception of the proprietary AR's but those run into the thousands of dollars. But for 99% of the AR's out there parts are easily replaced.

Dolomite

[eapking]

Well there are mil-spec versus commercial-spec considerations.

[Dolomite_supafly]

Well there are mil-spec versus commercial-spec considerations.

That ony applies to recevier extensions (buffer tubes) and stocks. And 90% of the parts out there are for commercial buffer tubes. A commercial stock will fit both a commercial buffer tube and a milspec tube. But a milspec stock will NOT fit a commercial tube and will only work on a milspec tube. Or at least not without some work.

Dolomite

[eapking]

True. Just wanted to let this person know that these are things to think about.

[LDRider]

Thank you for the info guys!

Question about the barrel twist though. Why do you consider the 7 twist to be "more advanced" and "less versatile" than 8 or 9 twist?

TIA

Jeff

[JRWnTN]

The 1/7 twist stabilizes longer, heavier bullets, such as 77 grainers, than the 1/9. The 1/7 will also stabilize light bullets. I've seen 1" groups at 200 yards from a 1/7 barrel using 52 gr. match bullets.