A3 or A4

Messages
466
Reactions
9
Basically there is one difference.... The carry handle. The A3 designation denotes a flat top upper with the inclusion of a removable carry handle that is included(should be if they call it an A3) in the purchase. An A4 is just a flat top upper without a carry handle.

Some folks think it has to do with M4 cuts on the receiver, this is not true. This is where the M4 designation from Colt comes into play.

If you'd like to have a carry handle, get the A3 package. If you are going to run an optic and BUIS, just get an A4 and save yourself some money!

Good luck and I hope this helps!
 
Messages
507
Reactions
13
The above may be true but many manufacturers still sell A3 uppers as flat tops w/o feed ramps and A4/M4 uppers w/ feed ramps. Something to bear in mind. A3/A4 are mean different things between mil/civ world and between civ. companies.

Basic rule of thumb: If your barrel HAS ramps, you can use a ramped or standard reciever. if your barrel has NO RAMPS then you must use a standard reciever.

If you're buying a complete upper it doesn't matter.

I prefer m4 feedramps.
 

UPCOMING EVENTS

Arms Collectors of SW Washington Gun Show
Battleground Community Center
912 E Main St, Battle Ground, WA 98604, USA
Rimfire Challenge Dec 12th @ DRRC
Douglas Ridge Rifle Club
27787 OR-224, Eagle Creek, OR 97022, USA
Albany Rifle & Pistol Club (ARPC) Gun Show
Linn County Expo Center
3700 Knox Butte Rd E, Albany, OR 97322, USA

LATEST RESOURCE REVIEWS

  • Wildcat Mountain
    4.00 star(s)
    Wildcat Mountain Nov. 30
    Went there today, it was accessible but bad conditions which I kind of expected. Melting snow, mud, etc. No one there and I didn't see a lot of...
  • Gator's Custom Guns
    5.00 star(s)
    Best true Gun shop ive been in for some time
    Cool stuff in stock rather than the top 10 at corporate box stores They moved to a larger place I have to go back and spend more money. I like to...
  • Adaptive Firing Solutions
    5.00 star(s)
    Adaptive Firing Solutions. A+
    5 stars does not do Adaptive Firing Solutions justice. I have done business with him multiple times and wish I could give at least 12 stars...
  • Limitless America
    5.00 star(s)
    Awesome shop
    Love this shop. Purchased a few items from them. Always have a lot of parts in stock without much markup. Purchased two cans this summer from them...
  • Gator's Custom Guns
    5.00 star(s)
    Great, old school gun shop
    The store is a treasure trove I have found magazines for H&K, Ruger and M1A's and at great prices. The staff is knowledgeable and friendly and...
    • GWS
Top Bottom