Auto vs Semi-Auto BCG

[JZ1018]

What is the difference between an auto and a semi-auto BCG for an AR? Everything else equal, is one perferred over the other and why?
Thanks.

 

[falcon123]

What is the difference between an auto and a semi-auto BCG for an AR? Everything else equal, is one perferred over the other and why?
Thanks.

I have both and the only difference seems to be the heavier part at the back. The auto one has more "meat" at the end.

BCG

 

[Artifact]

What is the difference between an auto and a semi-auto BCG for an AR? Everything else equal, is one perferred over the other and why?
Thanks.

It wouldn't matter for range average use, they both more than capable. As Falcon said F-Auto BCG's are a little heavier and more preferable amongst shooters.

 

[ivarr]

i went full auto bcg for longer life and slightly slower cycling.
also takes a bit longer to heat up

 

[ntomsw]

No real difference IMHO.

Either one will serve you just fine. Windham Weaponry sells their M16 or AR15 BCG for the same price. $135

 

[oilspill]

There is no reason to use an AR15 BCG unless it's all you can find.

 

[Romokid]

No real difference IMHO.

^This. If you are really looking to slow down cycling rate, a heavier buffer will be better suited.

 

[Dream to Dream]

There is no reason to use an AR15 BCG unless it's all you can find.

Or you're using a Colt pre-ban lower with a sear block installed.