AR-15 Pistol

[brucecrain]

I am building my first ar pistol build and i already have a new anderson lower and a pistol buffer tub. I need advise and ideas on caliber (300 or 556) and length.

 

[lonehoosier]

Will this be a toy or tool?

 

[jagee]

Suppressed or not?

 

[Kutnupe14]

300 blackout all day long. 10.5... the shorter versions look ridiculous IMO

 

[Bigtanker]

How much will you be shooting it and what purpose will it serve? Do you reload?

 

[brucecrain]

more of a toy and take it to the range a about once a month

 

[brucecrain]

also i do not reload yet.

 

[Mgderf]

I am building my first ar pistol build and i already have a new anderson lower and a pistol buffer tub. I need advise and ideas on caliber (300 or 556) and length.

Yes

 

[Trigger Time]

.

 

[Trigger Time]

..

 

[gmcttr]

300 Blackout 8.3" Ballistic Advantage Hanson barrel...

 

[pharmboy]

Have you considered 7.62x39? Similar ballistics to .300 BO.

 

[Cree]

GMCTTR, That is a nice looking setup!

 

[ROLEXrifleman]

If it's a toy then a piece of paper or steel will not know the difference between 556 or 300. Look at pricing between the two and buy the one you can afford more of. A toy is worthless if you can't afford to shot it. As far as barrel length goes, the shorter you go the more obnoxious you get. Go as short as you want to be obnoxious!

 

[KLB]

Suppressed or not?

This is the key question to decide which caliber.

 

[brucecrain]

not Suppressed

 

[KLB]

not Suppressed

Well then, my answer changes to 5.56 10.5".

No reason to spend more on ammo if you aren't going to suppress it.

 

[CPT Nervous]

Definitely 5.56 10.5". I just built a 5.56 11.5". I wouldn't go shorter than 10.5". You lose a lot of velocity with a shorter barrel.

Plus, you can put a foregrip on it if the overall length is over 26". Gives you a little more versatility.