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    5.56mm NATO
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Caliber
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  20. 222 Remington 4 items
  21. 22-250 Remington 10 items
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  23. 223 WSSM 1 item
  24. 224 Valkyrie 7 items
  25. 224 Weatherby 5 items
  26. 240 Weatherby 3 items
  27. 243 Winchester 25 items
  28. 243 WSSM 1 item
  29. 25 Auto 6 items
  30. 25 Creedmoor 4 items
  31. 250 Savage 1 item
  32. 25-06 Remington 6 items
  33. 25-35 Winchester 1 item
  34. 257 Roberts 2 items
  35. 257 Weatherby 8 items
  36. 26 Nosler 4 items
  37. 260 Remington 7 items
  38. 264 Winchester 1 item
  39. 27 Nosler 2 items
  40. 270 Weatherby 7 items
  41. 270 Winchester 26 items
  42. 270 WSM 6 items
  43. 275 Rigby 1 item
  44. 28 Gauge 12 items
  45. 28 Nosler 6 items
  46. 280 Ackley 7 items
  47. 280 Remington 4 items
  48. 30 Carbine 4 items
  49. 30 Nosler 4 items
  50. 30 Super Carry 8 items
  51. 30 TC 1 item
  52. 300 AAC Blackout 40 items
  53. 300 H&H Mag 1 item
  54. 300 PRC 8 items
  55. 300 RCM 1 item
  56. 300 RUM 10 items
  57. 300 SAUM 4 items
  58. 300 Savage 1 item
  59. 300 Weatherby Magnum 13 items
  60. 300 Winchester Magnum 30 items
  61. 300 WSM 9 items
  62. 30-06 Springfield 49 items
  63. 303 British 2 items
  64. 30-30 Winchester 18 items
  65. 30-378 Weatherby Magnum 9 items
  66. 30-40 Krag 1 item
  67. 308 Marlin Express 1 item
  68. 308 Winchester 66 items
  69. 32 Auto (ACP) 9 items
  70. 32 H&R Magnum 1 item
  71. 32 S&W Long 1 item
  72. 32 Winchester Special 2 items
  73. 325 WSM 1 item
  74. 327 Federal Magnum 1 item
  75. 33 Nosler 3 items
  76. 338 ARC 5 items
  77. 338 Lapua 9 items
  78. 338 Marlin Express 1 item
  79. 338 RCM 1 item
  80. 338 RUM 1 item
  81. 338 Weatherby RPM 4 items
  82. 338 Winchester Magnum 10 items
  83. 338-378 Weatherby Magnum 2 items
  84. 340 Weatherby 2 items
  85. 348 Winchester 1 item
  86. 35 Remington 1 item
  87. 35 Whelen 4 items
  88. 350 Legend 8 items
  89. 357 Magnum 28 items
  90. 357 SIG 8 items
  91. 358 Winchester 1 item
  92. 375 H&H Magnum 8 items
  93. 375 Ruger 4 items
  94. 376 Steyr 2 items
  95. 378 Weatherby 4 items
  96. 38 Special 24 items
  97. 38 Super Auto 3 items
  98. 380 Auto (ACP) 27 items
  99. 40 S&W 44 items
  100. 400 Legend 2 items
  101. 404 Jeffery 2 items
  102. 405 Winchester 1 item
  103. 41 Remington Magnum 3 items
  104. 410 Gauge 12 items
  105. 416 Remington Magnum 5 items
  106. 416 Rigby 4 items
  107. 416 Ruger 2 items
  108. 416 Weatherby Magnum 2 items
  109. 44 Magnum 19 items
  110. 44 Special 7 items
  111. 444 Marlin 2 items
  112. 44-40 Winchester 2 items
  113. 45 Auto (ACP) 49 items
  114. 45 Long Colt 9 items
  115. 450 Bushmaster 7 items
  116. 450 Marlin 1 item
  117. 450 Nitro Express 2 items
  118. 450-400 Nitro Express 2 items
  119. 454 Casull 4 items
  120. 45-70 Government 12 items
  121. 458 Lott 4 items
  122. 458 Win Mag 4 items
  123. 460 S&W Magnum 3 items
  124. 460 Weatherby 1 item
  125. 4.6x30mm 2 items
  126. 470 Nitro Express 4 items
  127. 480 Ruger 1 item
  128. 50 Action Express 1 item
  129. 50 BMG 4 items
  130. 500 Nitro Express 3" 4 items
  131. 500 S&W Magnum 5 items
  132. 500-416 Nitro Express 2 items
  133. 5.45 x 39mm 4 items
  134. 5.56mm NATO 38 items
  135. 5.7 x 28mm 8 items
  136. 6mm ARC 9 items
  137. 6mm Creedmoor 13 items
  138. 6mm GT 1 item
  139. 6mm Remington 1 item
  140. 6.5 Creedmoor 41 items
  141. 6.5 Grendel 11 items
  142. 6.5 PRC 12 items
  143. 6.5 Weatherby RPM 4 items
  144. 6.5mm-284 Norma 4 items
  145. 6.5-300 Weatherby 4 items
  146. 6.5 x 55mm Swedish Mauser 3 items
  147. 6.8mm Remington SPC 9 items
  148. 7mm-08 Remington 13 items
  149. 7mm Backcountry 5 items
  150. 7mm Mauser (7 x 57 mm Mauser) 1 item
  151. 7mm PRC 7 items
  152. 7mm Remington Magnum 24 items
  153. 7mm RUM 3 items
  154. 7mm SAUM 2 items
  155. 7mm STW 4 items
  156. 7MM Weatherby 5 items
  157. 7mm Winchester Short Magnum 2 items
  158. 7.5x55mm Swiss 1 item
  159. 7.62 x 25mm 1 item
  160. 7.62 x 39mm 23 items
  161. 7.62 × 51mm NATO 13 items
  162. 7.62 x 54mm 3 items
  163. 7.65 x 53 Argentine 1 item
  164. 7.7 Japanese 1 item
  165. 8mm Mauser 3 items
  166. 9mm Luger 125 items
  167. 9x18 Makarov 4 items
  168. 9.3x62 Mauser 2 items
  169. 9.3x74R 1 item
Bullet Weight
  1. 50 Grain 1 item
  2. 55 Grain 17 items
  3. 62 Grain 11 items
  4. 64 Grain 3 items
  5. 68 Grain 1 item
  6. 70 Grain 2 items
  7. 75 Grain 3 items
Muzzle Velocity
  1. 2321 FPS 1 item
  2. 2793 FPS 1 item
  3. 2850 FPS 1 item
  4. 2910 FPS 2 items
  5. 2920 FPS 1 item
  6. 2960 FPS 1 item
  7. 3000 FPS 3 items
  8. 3020 FPS 1 item
  9. 3060 FPS 4 items
  10. 3100 FPS 3 items
  11. 3120 FPS 1 item
  12. 3150 FPS 1 item
  13. 3164 FPS 1 item
  14. 3175 FPS 1 item
  15. 3180 FPS 1 item
  16. 3230 FPS 1 item
  17. 3240 FPS 7 items
  18. 3265 FPS 1 item
  19. 3270 FPS 4 items
Applications
  1. Defensive 6 items
  2. Hunting 3 items
  3. Precision / Match 4 items
  4. Target 25 items
Round Count
  1. 20 21 items
  2. 30 3 items
  3. 50 4 items
  4. 100 1 item
  5. 120 1 item
  6. 150 5 items
  7. 180 1 item
  8. 200 4 items
  9. 420 1 item
  10. 450 1 item
  11. 500 2 items
  12. 800 1 item
  13. 840 2 items
  14. 1000 4 items
Inventory
  1. In Stock 17 items
  2. Out of Stock 21 items
Customer Rating
  1. 5
    8 items
  2. 4
    & up     22 items
  3. 3
    & up     23 items

5.56 NATO Ammunition

Shop 5.56 Ammo Online — Find the Best Deals on Top Brands

America is home to over 20 million AR-15-style rifles, and if you’re looking for ammo for yours, you’ve come to the right place. GunMag Warehouse has all the 5.56 NATO ammunition you need.

Choose between industry-leading brands like PMC and Hornady without blowing your budget. A wide selection of varying bullet weights, muzzle velocities, and round counts makes it even easier to find an option that works for you.

One of the biggest advantages of buying your rounds from GunMag Warehouse is our bulk discounts and regular sales that give us the best prices online for ammunition. Whether you need ammo for the range, competition shooting, self-defense, or hunting, GunMag Warehouse has the 5.56 you need in stock.

Stock up today and never overpay for 5.56 ammunition again.

  1. Hornady Frontier Cartridge 5.56 NATO Ammo 55gr M193 FMJ
    Hornady Frontier Cartridge 5.56 NATO Ammo 55gr M193 FMJ
    (168)
    $19.99 $499.99 $8.99 $209.99 Save $290.00 $0.42 $0.50 per round
  2. PMC X-Tac 5.56 NATO Ammo 55gr FMJBT
    PMC X-Tac 5.56 NATO Ammo 55gr FMJBT
    (181)
    $16.99 $849.99 $9.49 $439.99 Save $410.00 $0.44 $0.47 per round
  3. PMC X-Tac 5.56 NATO Ammo 62gr M855 Green Tip LAP
    PMC X-Tac 5.56 NATO Ammo 62gr M855 Green Tip LAP
    (339)
    $19.99 $449.99 $9.99 $449.99 Save $10.00 $0.45 $0.50 per round
  4. MKE 5.56 NATO Ammo 62gr SS109 LAP 30 Rounds
    MKE 5.56 NATO Ammo 62gr SS109 LAP 30 Rounds
    (12)
    $22.99 $13.99 Save $9.00 ($0.47 per round)
  6. Hornady Black 5.56 NATO Ammo 62gr FMJ 20 Rounds
    Hornady Black 5.56 NATO Ammo 62gr FMJ 20 Rounds
    (31)
    $23.99 $16.49 Save $7.50 ($0.82 per round)
  7. PMC X-Tac 5.56 NATO Ammo 55gr FMJ-BT 200 Round Battle Pack
    PMC X-Tac 5.56 NATO Ammo 55gr FMJ-BT 200 Round Battle Pack
    (28)
    $143.99 $101.99 Save $42.00 ($0.51 per round)
  8. Federal Tactical Bonded 5.56 NATO Ammo 64gr SP 20 Rounds
    Federal Tactical Bonded 5.56 NATO Ammo 64gr SP 20 Rounds
    $29.99 $20.99 Save $9.00 ($1.05 per round)
  11. Federal Personal Defense 5.56 NATO Ammo 64gr SP 20 Rounds
    Federal Personal Defense 5.56 NATO Ammo 64gr SP 20 Rounds
    $29.99 $20.99 Save $9.00 ($1.05 per round)
  14. Hornady Frontier Cartridge 5.56 NATO Ammo 62gr FMJ
    Hornady Frontier Cartridge 5.56 NATO Ammo 62gr FMJ
    (4)
    $17.99 $116.99 $11.99 $84.99 Save $32.00 $0.57 $0.60 per round
  15. Hornady Superformance 5.56 NATO Ammo 55gr CX 20 Rounds
    Hornady Superformance 5.56 NATO Ammo 55gr CX 20 Rounds
    (1)
    $39.99 $25.99 Save $14.00 ($1.30 per round)
  18. PMC X-Tac 5.56 NATO Ammo 62gr Green Tip LAP 120 Round Battle Pack
    PMC X-Tac 5.56 NATO Ammo 62gr Green Tip LAP 120 Round Battle Pack
    Out of stock
    (30)
    $94.99 $67.99 Save $27.00 ($0.57 per round)
  19. Barnes VOR-TX Rifle 5.56 NATO Ammo 70gr TSX BT 20 Rounds
    Barnes VOR-TX Rifle 5.56 NATO Ammo 70gr TSX BT 20 Rounds
    Out of stock
    (8)
    $34.99 $29.99 Save $5.00 ($1.50 per round)
  20. Hornady Frontier Cartridge 5.56 NATO Ammo 55gr HP Match
    Hornady Frontier Cartridge 5.56 NATO Ammo 55gr HP Match
    Out of stock
    (8)
    $50.99 $148.99 $25.99 $73.99 Save $75.00 $0.49 $0.52 per round
  21. Hornady Frontier Cartridge 5.56 NATO Ammo 68gr BTHP Match 20 Rounds
    Hornady Frontier Cartridge 5.56 NATO Ammo 68gr BTHP Match 20 Rounds
    Out of stock
    (17)
    $20.95 $12.99 Save $7.96 ($0.65 per round)
  22. Barnes VOR-TX Rifle 5.56 NATO Ammo 62gr TSX BT 20 Rounds
    Barnes VOR-TX Rifle 5.56 NATO Ammo 62gr TSX BT 20 Rounds
    Out of stock
    (5)
    $34.99 $28.99 Save $6.00 ($1.45 per round)
  23. Aguila 5.56 NATO Ammo 55gr FMJ
    Aguila 5.56 NATO Ammo 55gr FMJ
    Out of stock
    $15.99 $299.99 $15.99 $229.99 Save $70.00 $0.51 $0.53 per round
  24. Federal American Eagle 5.56 NATO Ammo 55gr FMJ 200 Rounds
    Federal American Eagle 5.56 NATO Ammo 55gr FMJ 200 Rounds
    Out of stock
    $163.99 $109.99 Save $54.00 ($0.55 per round)
  25. Federal American Eagle 5.56 NATO Ammo 55gr FMJ 100 Rounds
    Federal American Eagle 5.56 NATO Ammo 55gr FMJ 100 Rounds
    Out of stock
    $81.99 $56.49 Save $25.50 ($0.56 per round)
  26. Winchester USA Green Tip 5.56 NATO Ammo 62gr FMJ 420 Rounds
    Winchester USA Green Tip 5.56 NATO Ammo 62gr FMJ 420 Rounds
    Out of stock
    $399.99 $364.99 Save $35.00 ($0.87 per round)
  27. Armscor Ammo 5.56 NATO Ammo 62gr FMJ 1,000 Rounds
    Armscor Ammo 5.56 NATO Ammo 62gr FMJ 1,000 Rounds
    Out of stock
    $849.99 ($0.85 per round)
  28. PPU Rangemaster 5.56 NATO Ammo 55gr FMJBT 20 Rounds
    PPU Rangemaster 5.56 NATO Ammo 55gr FMJBT 20 Rounds
    Out of stock
    $16.99 $13.99 Save $3.00 ($0.70 per round)
  29. Uzima Romanian 5.56 NATO Ammunition 55gr M193 FMJ 800 Rounds
    Uzima Romanian 5.56 NATO Ammunition 55gr M193 FMJ 800 Rounds
    Out of stock
    $599.99 $419.99 Save $180.00 ($0.52 per round)
  30. Winchester 5.56 NATO Ammo 62gr M855 Green Tip FMJ
    Winchester 5.56 NATO Ammo 62gr M855 Green Tip FMJ
    Out of stock
    (22)
    $16.99 $649.99 $12.99 $629.99 Save $46.00 $0.63 $0.69 per round
  31. Winchester Target & Practice 5.56 NATO Ammo 55gr M193 FMJ
    Winchester Target & Practice 5.56 NATO Ammo 55gr M193 FMJ
    Out of stock
    (5)
    $19.99 $129.99 $11.99 $86.99 Save $43.00 $0.58 $0.60 per round
  32. aguila-5-56x45mm-fmjbt-50-rounds.jpg
    Aguila 5.56 NATO Ammo 62gr FMJBT 50 Rounds
    Out of stock
    (1)
    $49.99 $27.99 Save $22.00 ($0.56 per round)
  33. winchester-5-56x45mm-nato-fmj-180-rounds.jpg
    Winchester USA 5.56 NATO Ammo 55gr FMJ 180 Rounds
    Out of stock
    $149.99 $84.99 Save $65.00 ($0.47 per round)
  34. Winchester USA 5.56 NATO Ammo 50gr JF 20 Rounds
    Winchester USA 5.56 NATO Ammo 50gr JF 20 Rounds
    Out of stock
    (1)
    $30.99 $18.99 Save $12.00 ($0.95 per round)
  35. PPU Mil-Spec 5.56 NATO Ammo 55gr FMJBT 20 Rounds
    PPU Mil-Spec 5.56 NATO Ammo 55gr FMJBT 20 Rounds
    Out of stock
    $19.99 $9.99 Save $10.00 ($0.50 per round)
  36. PPU Mil-Spec 5.56 NATO Ammo 55gr FMJBT 200 Rounds
    PPU Mil-Spec 5.56 NATO Ammo 55gr FMJBT 200 Rounds
    Out of stock
    $169.99 $88.99 Save $81.00 ($0.44 per round)
  37. Magtech Tactical 5.56 NATO Ammo 55gr FMJ 50 Rounds
    Magtech Tactical 5.56 NATO Ammo 55gr FMJ 50 Rounds
    Out of stock
    (16)
    $42.99 $24.49 Save $18.50 ($0.49 per round)
  38. Hornady Frontier Cartridge 5.56 NATO Ammo 75gr BTHP Match 20 Rounds
    Hornady Frontier Cartridge 5.56 NATO Ammo 75gr BTHP Match 20 Rounds
    Out of stock
    (15)
    $22.99 $13.99 Save $9.00 ($0.70 per round)
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