5.56 NATO is a widely used rifle cartridge developed for military and sporting applications, known for its reliability and versatility in AR-15 platforms. While not a manufacturer, many firearms companies produce 5.56 NATO specific parts, including barrels, upper receivers, bolt carrier groups, magazines, and complete rifles or build kits. These components are popular among shooters and builders seeking dependable, high performance solutions for tactical, sporting, and home defense use. If you need details on a specific manufacturer of 5.56 NATO parts, let me know!
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Select optionsQuick View16″ AR-15 Rifle Kit with 15″ Slim Keymod with 80% Lower Receiver – Titanium Blue
$419.95In stock
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Select optionsQuick ViewTungsten Grey 16″ Rifle Kit 5.56 with 15″ Keymod with Lower
$419.95In stock
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Select optionsQuick View7.5″ 1×7 Pistol Upper 7 inch Keymod Rail No BCG or Charging Handle
$195.95In stock
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Select optionsQuick ViewAR-15 Rifle Kit complete with 12″ M-Lok Handguard 1×8 NO Lower – Black
$329.95In stock
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Select optionsQuick View16″ AR-15 Rifle Kit with 15″ Slim Keymod with 80% Lower Receiver – Burnt Bronze
$419.95In stock
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Select optionsQuick View16″ Flat Dark Earth Rifle Kit 5.56 with 12″ Keymod with Lower
$409.95In stock
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Select optionsQuick ViewAR-15 Rifle Kit 15 inch Keymod 1 x 7 Upper Assembled NO 80% Lower
$279.95In stock
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Select optionsQuick View10.5″ 5.56 AR-15 / M4 Upper with 10″ Quadrail No BCG or Charging Handle
$199.95In stock
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Select optionsQuick View16″ 1×8 Carbine 15 inch M-LOK Rail No BCG or Charging Handle
$194.95In stock
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Select optionsQuick View16′” AR-15 Rifle Kit with 12″ Slim Keymod with 80% Lower Receiver – Burnt Bronze
$409.95In stock
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Add to cartQuick View16″ Flat Dark Earth AR-15 Upper 15″ FDE Free Float Keymod with BCG and Charging Handle
$306.95In stock
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Select optionsQuick View10.5 AR15 Pistol Kit 10″ Quadrail Upper Assembled With 80% Lower
$299.95In stock
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Select optionsQuick ViewZombie Green 16″ Rifle Kit 5.56 15″ Slim Keymod with Lower
$419.95In stock
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Select optionsQuick View16″ A2 Sight Tower M4 1×7 Carbine Upper No BCG or Charging Handle
$265.95In stock
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