Remington UMC We The People 250th Anniversary .223 Remington 55-grain Full Metal Jacket ammunition (brand part no. 21388) is a special-edition 250-round bucket from Remington, built for AR-15 shooters who want to stock up in a single purchase. UMC is Remington’s affordable, high-volume range line, and this commemorative 250th Anniversary bucket packaging makes it easy to store and transport a serious quantity of ammunition at once. The 55-grain FMJ is the industry-standard weight for .223 Remington training ammunition, feeding cleanly through virtually every AR-platform rifle on the market. Brass cases keep the load reloadable and running reliably where steel-cased ammunition can be picky in some actions.

Key Specifications

• Chambered in .223 Remington, the standard commercial AR-platform rifle cartridge.
• Loaded with a 55-grain bullet, the industry-standard weight for .223 Remington range ammunition.
• Uses full metal jacket construction for reliable feeding without expansion.
• Brass-cased for dependable extraction and reloading.
• Part of Remington’s UMC lineup, its affordable, high-volume range and training brand.
• Packaged in a special We The People 250th Anniversary commemorative bucket.
• Sold as 250 rounds per bucket.
• Feeds reliably through virtually every AR-platform rifle chambered in .223 Remington.
• Runs about $0.57 per round at this bucket’s price.

Frequently Asked Questions

Is this FMJ load suited for hunting or defense? No, full metal jacket construction is built for reliable feeding and target work rather than expansion, so it’s best suited to range and training use.

How is this ammo packaged? It ships in a commemorative 250th Anniversary bucket holding 250 rounds.

Can I run this in a 5.56 NATO-chambered rifle? Yes, .223 Remington is safe to fire in both .223 Rem and 5.56 NATO chambers; the reverse isn’t true, so don’t fire 5.56 NATO ammunition in a rifle chambered specifically for .223 Remington.

Buy the Remington UMC .223 Remington 55gr FMJ Bucket

An AR build only proves itself with ammo on hand, and this UMC bucket keeps the cost of practice manageable at real volume. Stock up on rifle ammunition before your next range trip. Order from our Lubbock, Texas gun shop and it ships fast to your door.