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Bulk 556 Ammo for Sale from Top Brands like Hornady, Winchester & PMC Ammunition — 33 products / 70 models

Buy bulk 5.56 ammo online at OpticsPlanet.com to stock up and save big on premium 5.56x45mm ammunition. The 5.56 NATO round is widely recognized for its excellent balance of power, accuracy, and low recoil, making it a favorite among military personnel, law enforcement, and civilian shooters alike. Whether you’re training at the range, competing in shooting sports, or preparing for tactical scenarios, having a reliable supply of quality ammunition is essential. Choosing bulk 5.56 ammo offers significant advantages by providing consistent performance while dramatically reducing your cost per round. With bulk 556 ammo, you can stock up on large quantities that ensure you’re always ready for extended practice sessions or unforeseen needs without the hassle of frequent reordering.image

Purchasing 556 bulk ammo also means you benefit from better pricing compared to buying smaller quantities, allowing you to maximize your budget while maintaining access to dependable rounds. Learn more about the benefits of buying 5.56 ammo in bulk with our Bulk Ammo Guide and check out all of our bulk ammo for sale to find more ways to save on stockpiles of ammunition.

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PMC Ammunition X-TAC Light Armor Piercing 5.56x45mm NATO 62 Grain Brass Cased Centerfire Rifle Ammunition 1 of 2 models On Sale
List: $699.50 (Save 26%) $519.50 $0.52/Round
In stock.
Seasonal Promotion

Seasonal Promotion

Eligible models will have a savings offer and the coupon code to use below. Add the item to your cart and enter the coupon for savings on that select model!

On Sale
Best Rated Product
PMC Ammunition X-TAC Light Armor Piercing 5.56x45mm NATO 62 Grain Brass Cased Centerfire Rifle Ammunition 99 Reviews
  • Caliber: 5.56x45mm NATO
  • Number of Rounds: 20, 1000
  • Bullet Type: Light Armor Piercing (LAP)
  • Bullet Weight: 62 grain
  • Cartridge Case Material: Brass
View All 5.56 NATO Ammo (74 products)
Hornady Frontier 5.56x45mm NATO 75 grain Boat Tail Hollow Point (BTHP) Brass Centerfire Rifle Ammunition 1 of 2 models Best Rated
List: $490.58 (Save 28%) $352.25 $0.70/Round
In stock.
Best Rated Product
Hornady Frontier 5.56x45mm NATO 75 grain Boat Tail Hollow Point (BTHP) Brass Centerfire Rifle Ammunition 23 Reviews
  • Caliber: 5.56x45mm NATO
  • Number of Rounds: 20, 500
  • Bullet Type: Boat Tail Hollow Point (BTHP)
  • Bullet Weight: 75 grain
  • Cartridge Case Material: Brass
View All 5.56 NATO Ammo (74 products)
Ammo, Inc. Signature 5.56x45mm NATO 55 Grain M193 Full Metal Jacket (FMJ) Brass Cased Rifle Ammunition 1 of 2 models Blazin' Deal
List: $361.54 (Save 29%) $257.25 $0.47/Round
In stock.
Seasonal Promotion

Seasonal Promotion

Eligible models will have a savings offer and the coupon code to use below. Add the item to your cart and enter the coupon for savings on that select model!

Ammo, Inc. Signature 5.56x45mm NATO 55 Grain M193 Full Metal Jacket (FMJ) Brass Cased Rifle Ammunition 1 Review
  • Caliber: 5.56x45mm NATO
  • Number of Rounds: 20, 500
  • Bullet Type: Full Metal Jacket (FMJ)
  • Bullet Weight: 55 grain
  • Cartridge Case Material: Brass
View All 5.56 NATO Ammo (74 products)
Hornady Frontier 5.56x45mm NATO 55 grain Ball (M193) Full Metal Jacket (FMJ) Brass Centerfire Rifle Ammunition 1 of 4 models Blazin' Deal
List: $366.96 (Save 22%) $284.75 $0.52/Round
In stock.
Best Rated Product
Hornady Frontier 5.56x45mm NATO 55 grain Ball (M193) Full Metal Jacket (FMJ) Brass Centerfire Rifle Ammunition 39 Reviews
  • Caliber: 5.56x45mm NATO
  • Number of Rounds: 20, 50, 150 and 1 more
  • Bullet Type: Full Metal Jacket (FMJ)
  • Bullet Weight: 55 grain
  • Cartridge Case Material: Brass
View All 5.56 NATO Ammo (74 products)
Winchester USA 5.56x45mm NATO 55 grain Ball (M193) Full Metal Jacket Brass Centerfire Rifle Ammunition 5 of 7 models Best Rated
As Low As (Save Up to 18%) $117.89 $0.56/Round
Select a model to see availability
Select Model...
Best Rated Product
Winchester USA 5.56x45mm NATO 55 grain Ball (M193) Full Metal Jacket Brass Centerfire Rifle Ammunition 147 Reviews
  • Caliber: 5.56x45mm NATO
  • Number of Rounds: 20, 150, 200 and 3 more
  • Bullet Type: Full Metal Jacket (FMJ)
  • Bullet Weight: 55 grain
  • Cartridge Case Material: Brass
View All 5.56 NATO Ammo (74 products)
Aguila Ammunition 5.56x45mm NATO Ammo 55 Grain FMJ Brass Case Rifle Ammunition, 450 Rounds
List: $300.60 (Save 21%) $236.79 $0.53/Round
In stock.
Seasonal Promotion

Seasonal Promotion

Eligible models will have a savings offer and the coupon code to use below. Add the item to your cart and enter the coupon for savings on that select model!

Aguila Ammunition 5.56x45mm NATO Ammo 55 Grain FMJ Brass Case Rifle Ammunition, 450 Rounds, 450, FMJ 2 Reviews
  • Caliber: 5.56x45mm NATO
  • Number of Rounds: 450
  • Bullet Type: Full Metal Jacket (FMJ)
  • Bullet Weight: 55 grain
  • Cartridge Case Material: Brass
View All 5.56 NATO Ammo (74 products)
Hornady BLACK 5.56x45mm NATO 75 Grain InterLock HD SBR Centerfire Rifle Ammunition 1 of 2 models 20% Coupon
List: $279.99 (Save $20.00) $259.99 $1.30/Round
Estimated to ship by April 2026
Coupon Available

Save 20% on orders $100 or more of Hunting Ammo from Hornady!

Eligible models will have a savings offer and the coupon code to use below. Add the item to your cart and enter the coupon for savings on that select model! Limited time only. Cannot be combined with other promotions or offers. See promotion details.

Best Rated Product
Hornady BLACK 5.56x45mm NATO 75 Grain InterLock HD SBR Centerfire Rifle Ammunition 19 Reviews
  • Caliber: 5.56x45mm NATO
  • Number of Rounds: 20, 200
  • Bullet Type: Spitzer Flat Base
  • Bullet Weight: 75 grain
  • Cartridge Case Material: Brass
View All 5.56 NATO Ammo (74 products)
PPU PPRM5561M 5.56X45 55 FMJBT RNGMSTR
List: $830.99 (Save 21%) $655.89 $0.66/Round
4 left, order now!
PPU PPRM5561M 5.56X45 55 FMJBT RNGMSTR, 1000, FMJBT
  • Caliber: 5.56x45mm NATO
  • Number of Rounds: 1000
  • Bullet Type: Full Metal Jacket Boat Tail (FMJBT)
  • Bullet Weight: 55 grain
  • Cartridge Case Material: Brass
View All 5.56 NATO Ammo (74 products)
Winchester USA 5.56x45mm NATO 62 grain Green Tip M855 Full Metal Jacket Boat Tail FMJBT Brass Centerfire Rifle Ammunition 4 of 6 models Best Rated
As Low As (Save Up to 11%) $123.49 $0.62/Round
Select a model to see availability
Select Model...
Best Rated Product
Winchester USA 5.56x45mm NATO 62 grain Green Tip M855 Full Metal Jacket Boat Tail FMJBT Brass Centerfire Rifle Ammunition 132 Reviews
  • Caliber: 5.56x45mm NATO
  • Number of Rounds: 20, 150, 200 and 3 more
  • Bullet Type: Full Metal Jacket (FMJ)
  • Bullet Weight: 62 grain
  • Cartridge Case Material: Brass
View All 5.56 NATO Ammo (74 products)
Aguila Ammunition 5.56x45mm NATO 62 Grain Green Tipped Full Metal Jacket Brass Cased Centerfire Rifle Ammunition
List: $201.19 (Save 19%) $163.49 $0.54/Round
20 left, order now!
Aguila Ammunition 5.56x45mm NATO 62 Grain Green Tipped Full Metal Jacket Brass Cased Centerfire Rifle Ammunition, 300, FMJBT 3 Reviews
  • Caliber: 5.56x45mm NATO
  • Number of Rounds: 300
  • Bullet Type: Full Metal Jacket Boat Tail (FMJBT)
  • Bullet Weight: 62 grain
  • Cartridge Case Material: Brass
View All 5.56 NATO Ammo (74 products)
Ammo, Inc. 5.56x45mm NATO 55 Grain Full Metal Jacket Brass Cased Centerfire Rifle Ammunition Final Sale
List: $147.62 (Save 15%) $125.19 $0.63/Round
17 left, order now!
Ammo, Inc. 5.56x45mm NATO 55 Grain Full Metal Jacket Brass Cased Centerfire Rifle Ammunition, 200, FMJ 1 Review
  • Caliber: 5.56x45mm NATO
  • Number of Rounds: 200
  • Bullet Type: Full Metal Jacket (FMJ)
  • Bullet Weight: 55 grain
  • Cartridge Case Material: Brass
View All 5.56 NATO Ammo (74 products)
PMC 556XBP Battle Pack 5.56 NATO 55 Gr Full Metal Jacket Boat Tail (FMJBT)
List: $144.00 (Save 10%) $129.99 $0.65/Round
In stock.
PMC 556XBP Battle Pack 5.56 NATO 55 Gr Full Metal Jacket Boat Tail (FMJBT), 200, FMJBT
  • Caliber: 5.56x45mm NATO
  • Number of Rounds: 200
  • Bullet Type: Full Metal Jacket Boat Tail (FMJBT)
  • Bullet Weight: 55 grain
  • Cartridge Case Material: Brass
View All 5.56 NATO Ammo (74 products)
Hornady Frontier 5.56mm NATO 68 Grain BTHP Match Brass Cased Rifle Ammunition
List: $449.99 (Save 12%) $397.59 $0.80/Round
Estimated to ship within 2-9 days
Hornady Frontier 5.56mm NATO 68 Grain BTHP Match Brass Cased Rifle Ammunition, 500, BTHP
  • Caliber: 5.56x45mm NATO
  • Number of Rounds: 500
  • Bullet Type: Boat Tail Hollow Point (BTHP)
  • Bullet Weight: 68 grain
  • Cartridge Case Material: Brass
View All 5.56 NATO Ammo (74 products)
Freedom Munitions 5.56x45mm NATO 55 Grain Full Metal Jacket Brass Rifle Ammunition 1 of 2 models Newly Added
List: $322.49 (Save $27.00) $295.49 $0.59/Round
Estimated to ship within 14-25 days
New Product
Freedom Munitions 5.56x45mm NATO 55 Grain Full Metal Jacket Brass Rifle Ammunition
  • Caliber: 5.56x45mm NATO
  • Number of Rounds: 50, 500
  • Bullet Type: Full Metal Jacket (FMJ)
  • Bullet Weight: 55 grain
  • Cartridge Case Material: Brass
View All 5.56 NATO Ammo (74 products)
Fiocchi Shooting Dynamics Rifle Ammunition 5.56mm NATO 55 gr FMJ
List: $689.99 (Save $43.90) $646.09 $0.65/Round
Estimated to ship within 2-9 days
Fiocchi Shooting Dynamics Rifle Ammunition 5.56mm NATO 55 gr FMJ, 1000, FMJ
  • Caliber: 5.56x45mm NATO
  • Number of Rounds: 1000
  • Bullet Type: Full Metal Jacket (FMJ)
  • Bullet Weight: 55 grain
  • Muzzle Velocity: 3240 ft/s
View All 5.56 NATO Ammo (74 products)
PMC Ammunition X-Tac Rifle Ammunition 5.56 NATO 62 gr Green Tip
List: $697.99 (Save 14%) $603.49 $0.60/Round
Estimated to ship within 2-9 days
PMC Ammunition X-Tac Rifle Ammunition 5.56 NATO 62 gr Green Tip, 1000, FMJ
  • Caliber: 5.56x45mm NATO
  • Number of Rounds: 1000
  • Bullet Type: Full Metal Jacket (FMJ)
  • Bullet Weight: 62 grain
  • Cartridge Case Material: Brass
View All 5.56 NATO Ammo (74 products)
PMC Ammunition X-Tac Rifle Ammunition 5.56x45mm 55 gr FMJBT 3120 fps
List: $683.99 (Save 14%) $589.29 $0.59/Round
Estimated to ship within 2-9 days
PMC Ammunition X-Tac Rifle Ammunition 5.56x45mm 55 gr FMJBT 3120 fps, 1000, FMJBT
  • Caliber: 5.56x45mm NATO
  • Number of Rounds: 1000
  • Bullet Type: Full Metal Jacket Boat Tail (FMJBT)
  • Bullet Weight: 55 grain
  • Cartridge Case Material: Brass
View All 5.56 NATO Ammo (74 products)
First Breach 5.56 NATO 55 Grain Full Metal Jacket Boattail New C220 Brass Cased Rifle Ammunition - Bulk
List: $612.29 (Save $51.40) $560.89 $0.56/Round
Estimated to ship within 15-24 days
First Breach 5.56 NATO 55 Grain Full Metal Jacket Boattail New C220 Brass Cased Rifle Ammunition - Bulk, 1000, FMJBT 1 Review
  • Caliber: 5.56x45mm NATO
  • Number of Rounds: 1000
  • Bullet Type: Full Metal Jacket Boat Tail (FMJBT)
  • Bullet Weight: 55 grain
  • Cartridge Case Material: Brass
View All 5.56 NATO Ammo (74 products)
Ammo, Inc. Signature 5.56x45mm NATO, 62 Grain, SS109 Penetrator Steel Core FMJ, Brass Centerfire Rifle Ammunition 1 of 2 models
List: $157.15 (Save 15%) $133.49 $0.67/Round
1 left, order now!
Ammo, Inc. Signature 5.56x45mm NATO, 62 Grain, SS109 Penetrator Steel Core FMJ, Brass Centerfire Rifle Ammunition 13 Reviews
  • Caliber: 5.56x45mm NATO
  • Number of Rounds: 20, 200
  • Bullet Type: SS109 Penetrator Steel Core FMJ
  • Bullet Weight: 62 grain
  • Cartridge Case Material: Brass
View All 5.56 NATO Ammo (74 products)
PMC Ammunition X-Tac Rifle Ammo Metal Box
List: $632.49 (Save $53.00) $579.49 $0.69/Each
In stock.
PMC Ammunition X-Tac Rifle Ammo Metal Box, 840, FMJ
  • Caliber: 5.56x45mm NATO
  • Number of Rounds: 840
  • Bullet Type: Full Metal Jacket (FMJ)
  • Bullet Weight: 55 grain
  • Cartridge Case Material: Brass
View All 5.56 NATO Ammo (74 products)
Atomic Ammunition Atomic Ammo 5.56x45 500 Rounds 62gr. Hornady Fmj Bulk-pack
List: $629.99 (Save 12%) $556.59 $1.11/Round
In stock.
Atomic Ammunition Atomic Ammo 5.56x45 500 Rounds 62gr. Hornady Fmj Bulk-pack, 500, FMJ
  • Caliber: 5.56x45mm NATO
  • Number of Rounds: 500
  • Bullet Type: Full Metal Jacket (FMJ)
  • Bullet Weight: 62 grain
  • Bullet Type: Full Metal Jacket (FMJ)
View All 5.56 NATO Ammo (74 products)
Winchester Lake City 5.56mm M193 55gr FMJ
List: $491.99 (Save 18%) $404.39 $0.67/Round
Estimated to ship by April 2026
Winchester Lake City 5.56mm M193 55gr FMJ, 600, FMJ
  • Caliber: 5.56x45mm NATO
  • Number of Rounds: 600
  • Bullet Type: Full Metal Jacket (FMJ)
  • Bullet Weight: 55 grain
  • Cartridge Case Material: Brass
View All 5.56 NATO Ammo (74 products)
Hornady Frontier 5.56mm NATO 62 Grain Full Metal Jacket Brass Cased Rifle Ammunition
List: $429.99 (Save 15%) $366.29 $0.73/Round
Estimated to ship by April 2026
Hornady Frontier 5.56mm NATO 62 Grain Full Metal Jacket Brass Cased Rifle Ammunition, 500, FMJ
  • Caliber: 5.56x45mm NATO
  • Number of Rounds: 500
  • Bullet Type: Full Metal Jacket (FMJ)
  • Bullet Weight: 62 grain
  • Cartridge Case Material: Brass
View All 5.56 NATO Ammo (74 products)
Hornady American Gunner Rifle Ammunition 5.56 NATO 55 gr HP 3240 fps
List: $263.99 (Save 21%) $207.69 $0.83/Each
Estimated to ship by April 2026
Hornady American Gunner Rifle Ammunition 5.56 NATO 55 gr HP 3240 fps, 247, HP
  • Caliber: 5.56x45mm NATO
  • Number of Rounds: 247
  • Bullet Type: Hollow Point (HP)
  • Bullet Weight: 55 grain
  • Cartridge Case Material: Brass
View All 5.56 NATO Ammo (74 products)
Aguila Ammunition 5.56 NATO 55 Grain Full Metal Jacket Boat Tail Brass Case Rifle Ammunition
List: $194.19 (Save $16.40) $177.79 $0.59/Round
Estimated to ship by April 2026
Aguila Ammunition 5.56 NATO 55 Grain Full Metal Jacket Boat Tail Brass Case Rifle Ammunition, 300, FMJBT
  • Caliber: 5.56x45mm NATO
  • Number of Rounds: 300
  • Bullet Type: Full Metal Jacket Boat Tail (FMJBT)
  • Bullet Weight: 55 grain
  • Cartridge Case Material: Brass
View All 5.56 NATO Ammo (74 products)
Winchester Lake City M855 Rifle Ammunition 5.56mm 62gr FMJ 1255 fps
List: $509.99 (Save 17%) $423.69 $0.71/Round
Estimated to ship by April 2026
Winchester Lake City M855 Rifle Ammunition 5.56mm 62gr FMJ 1255 fps, 600, FMJ
  • Caliber: 5.56x45mm NATO
  • Number of Rounds: 600
  • Bullet Type: Full Metal Jacket (FMJ)
  • Bullet Weight: 62 grain
  • Muzzle Velocity: 1255 ft/s
View All 5.56 NATO Ammo (74 products)
Winchester Lake City 5.56mm M855 Green Tip 62gr FMJ
List: $652.39 (Save 13%) $565.09 $0.71/Round
Estimated to ship by April 2026
Winchester Lake City 5.56mm M855 Green Tip 62gr FMJ, 800, FMJ
  • Caliber: 5.56x45mm NATO
  • Number of Rounds: 800
  • Bullet Type: Full Metal Jacket (FMJ)
  • Bullet Weight: 62 grain
  • Cartridge Case Material: Brass
View All 5.56 NATO Ammo (74 products)
PMC Ammunition X-Tac Rifle Ammo Metal Box 1102742
List: $650.49 (Save $54.60) $595.89 $0.71/Each
In stock.
PMC Ammunition X-Tac Rifle Ammo Metal Box 1102742, 840, FMJBT
  • Caliber: 5.56x45mm NATO
  • Number of Rounds: 840
  • Bullet Type: Full Metal Jacket Boat Tail (FMJBT)
  • Bullet Weight: 62 grain
  • Cartridge Case Material: Brass
View All 5.56 NATO Ammo (74 products)
TR&Z PPRM556B Metric Rifle Rifle Line 5.56x45mm NATO 55 Gr Full Metal Jacket Boa
List: $799.99 (Save 11%) $710.99 $0.71/Round
Estimated to ship by April 2026
TR&Z PPRM556B Metric Rifle Rifle Line 5.56x45mm NATO 55 Gr Full Metal Jacket Boa, 1000, FMJBT
  • Caliber: 5.56x45mm NATO
  • Number of Rounds: 1000
  • Bullet Type: Full Metal Jacket Boat Tail (FMJBT)
  • Bullet Weight: 55 grain
  • Cartridge Case Material: Brass
View All 5.56 NATO Ammo (74 products)
Magtech 5.56x45mm Ball M193
List: $732.00 (Save $14.01) $717.99 $0.72/Round
In stock.
Magtech 5.56x45mm Ball M193, 1000
  • Caliber: 5.56x45mm NATO
  • Number of Rounds: 1000
  • Bullet Weight: 55 grain
  • Caliber: 5.56x45mm NATO
  • Projectile Caliber: .224 Caliber
View All 5.56 NATO Ammo (74 products)
Winchester Lake City 5.56 MM M855 FMJ WIN 62 GR 50 Green Tip
List: $779.99 (Save $73.70) $706.29 $0.71/Round
Estimated to ship by April 2026
Winchester Lake City 5.56 MM M855 FMJ WIN 62 GR 50 Green Tip, 1000, FMJ
  • Caliber: 5.56x45mm NATO
  • Number of Rounds: 1000
  • Bullet Type: Full Metal Jacket (FMJ)
  • Bullet Weight: 62 grain
  • Cartridge Case Material: Brass
View All 5.56 NATO Ammo (74 products)
Fort Scott Munitions 5.56 NATO 55 Grain FNRA Brass Rifle Ammunition
List: $569.99 (Save 14%) $489.89 $0.98/Round
Estimated to ship within 23-32 days
Fort Scott Munitions 5.56 NATO 55 Grain FNRA Brass Rifle Ammunition, 500, SFN
  • Caliber: 5.56x45mm NATO
  • Number of Rounds: 500
  • Bullet Type: Solid Flat Nose (SFN)
  • Bullet Weight: 55 grain
  • Cartridge Case Material: Brass
View All 5.56 NATO Ammo (74 products)
Hornady Frontier 5.56mm NATO 55 Grain Full Metal Jacket Brass Cased Rifle Ammunition
List: $369.99 (Save 17%) $305.29 $0.61/Round
Estimated to ship within 2-9 days
Hornady Frontier 5.56mm NATO 55 Grain Full Metal Jacket Brass Cased Rifle Ammunition, 500, FMJ
  • Caliber: 5.56x45mm NATO
  • Number of Rounds: 500
  • Bullet Type: Full Metal Jacket (FMJ)
  • Bullet Weight: 55 grain
  • Cartridge Case Material: Brass
View All 5.56 NATO Ammo (74 products)
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