Popular Ammo>AR 15 Ammo

Buy AR 15 Ammo – AR 15 Ammo for Sale

When it comes to AR 15 ammo sales, GunBroker.com, the world's largest online auction site dedicated to firearms, hunting, shooting and accessories, is the place to be. We aim to provide you with all the necessary information you need to make an informed AR 15 ammo purchase. Explore the history, technical specifications, ballistics and background of AR 15 ammo, then browse the listings of our trusted sellers to make your purchase.

Hold your horses; we’ve got plenty more to offer. Check out our registered sellers' huge inventory of AR 15 ammo from a wide variety of manufacturers, including Magpul and Hornady.

Choosing the right AR 15 ammo

If you’re shopping here, you’re probably familiar with the chamber your AR 15 has and what ammo it needs, but surprisingly, many shooters believe all AR 15 ammo can be loaded into their rifle. This can lead to blown primers, case-ejection failure and cracked receivers. The best AR 15 ammo depends on what type of chamber your rifle has, so we’re going to cover the most common.

The .223 Remington is the most common AR 15 chamber. They are chrome-lined, smaller and tighter according to SAAMI (Sporting Arms and Ammunition Manufacturers Institute) specs. These are not to be confused with .223 Match chambers, which rifles slower and reduces the risk of spilling unspent powder.

The 5.56 Mil-Spec chamber is chrome lined and larger because the AR 15 ammo is loaded hotter and accommodates higher chamber pressure. It has a longer throat than the .223 chamber and can safely handle both 5.56 NATO ammo and .223 ammo.

Find More Auctions with GunBroker.com

Thanks for shopping with GunBroker.com, the world's largest online auction site dedicated to firearms, hunting, shooting and accessories. Our auctions are always added to and updated because of our millions of trusted sellers all over the U.S, so check back regularly if you can’t find what you’re looking for. In the meantime, explore our selection of Heckler and Koch guns just a click away.

AR 15 For Sale


Displaying the first 10000 items that match your criteria. Please refine your search.
Item   Title      Click Headers to Sort Quantity Bids Price Time Left
766977934
 
 
 
 
100 $40.00 89d 15h +
766977824
 
 
 
 
100 $150.00 89d 15h +
766977801
 
 
 
 
200 $235.00 89d 15h +
766977682
 
 
 
 
100 $575.00 89d 15h +
766821433
 
 
 
 
40 $1,195.00 89d 1h +
766813236
 
 
 
 
40 $649.00 89d +
766788158
 
 
 
 
1000 $66.99 88d 21h +
766777298
 
 
 
 
30 $799.99 88d 19h +
766840269
 
 
 
 
990 $57.99 88d 3h +
766617925
 
 
 
 
50 $89.99 88d 3h +
766598061
 
 
 
 
940 $798.92 88d +
766590376
 
 
 
 
20 $549.99 87d 23h +
766590358
 
 
 
 
10 $1,659.99 87d 23h +
766590290
 
 
 
 
30 $409.99 87d 23h +
766590288
 
 
 
 
20 $509.99 87d 23h +
766590186
 
 
 
 
10 $1,439.99 87d 23h +
767014319
 
 
 
 
130 $114.99 87d +
766365141
 
 
 
50 $49.99 86d 21h +
766150368
 
 
 
 
20 $550.00 85d 21h +
766133019
 
 
 
 
100 $550.00 85d 18h +
766023205
 
 
 
 
30 $189.00 85d 7h +
765960193
 
 
 
 
80 $1,436.16 85d 3h +
765959830
 
 
 
 
230 $925.99 85d 3h +
765959577
 
 
 
 
600 $802.99 85d 3h +
765958826
 
 
 
 
30 $459.95 85d 3h +
765956794
 
 
 
 
10 $970.00 85d 2h +
765952044
 
 
 
 
70 $1,641.75 85d 2h +
765934397
 
 
 
 
50 $58.00 85d +
765733174
 
 
 
 
1910 $109.99 84d 4h +
765703641
 
 
 
500 $89.99 84d 3h +
765659608
 
 
 
20 $90.00 83d 22h +
765620980
 
 
 
 
100 $24.00 83d 19h +
765619606
 
 
 
 
10 $1,079.00 83d 18h +
765614609
 
 
 
 
10 $88.99 83d 18h +
765461109
 
 
 
10 $639.99 83d 9h +
765504075
 
 
 
10 $120.00 83d 8h +
766391686
 
 
 
 
3560 $386.99 83d 7h +
765437282
 
 
 
 
10 $2,599.99 83d 4h +
765428354
 
 
 
 
20 $679.99 83d 3h +
765356773
 
 
 
 
100 $310.00 82d 21h +
765356735
 
 
 
 
100 $300.00 82d 21h +
765356575
 
 
 
 
100 $310.00 82d 21h +
765356514
 
 
 
 
100 $300.00 82d 21h +
765321478
 
 
 
 
30 $299.99 82d 19h +
765318288
 
 
 
 
30 $299.99 82d 19h +
765272359
 
 
 
 
10 $169.99 82d 16h +
765200116
 
 
 
 
100 $34.00 82d 7h +
766837919
 
 
 
 
90 $559.99 82d 3h +
765703615
 
 
 
 
90 $569.99 82d 3h +
765062558
 
 
 
 
30 $269.99 81d 22h +
Key:  Pictures   Fixed Price   Reserve   BuyNow!  Featured Item   QuickLook  Immediate Checkout
Ending times displayed are scheduled ending times subject to our 15 minute rule
Updated: 4/24/2018 2:34:59 PM EST   Check GunBroker.com official time

Loading QuickLook...

cancel