different recoil in a2 and a4?

[savagenation]

i recently purchased a bushmaster fixed a2 upper with a 16" heavy barrell. The only types of ar's ive shot were flat tops with 16" barrells, and the barely have any recoil to them at all. my question is do the lighter weight of the fixed uppers cause them have more recoil? :gun:

[JE3146]

No.

You will experience a noticable change in recoil with a carbine buffer tube assembly, versus hardly any recoil with the fixed stock.

That's the biggest variation in recoil for an AR15. The next would be the difference of a long barreled rifle and a carbine. The carbine again would have more recoil. This is due to the gas system. A little bit of reduced or added recoil can be attributed to weight.

So to summarize.

Collapsable stock /w carbine buffer tube - More recoil
Fixed stock - Less recoil

Carbine length barrel - more recoil
Midlength barrel - less recoil
Rifle length - least recoil
More than 20" barrel, even less recoil, but this is due to weight.

:welcome: to Gunsnet!

[savagenation]

i have shot a rock river m4 entry tactical, collapsible stock, 16" barrel, which had absolutely no recoil at all....much like a 22 lr rifle. although mine is a 14.5" barrel with a 1 1/2 " compensator, collapsible stock, fixed upper. so what can i do to reduce recoil in my rifle? :ywoot

[Rew]

My 16" carbine with a collapsible stock and light wight A1 profile barrel has no recoil. With a loaded 30 round mag (on the wife's bathroom scale) it goes 5 lbs. It has an A1 flash hider. I am not sure how I or you could make the recoil any lighter. Well, maybe use 40 grn varmint loads and get a hugh muzzel brake. Welcome to TGN ;)