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AR-15 & AR-10 Build Kits

Top Sellers

Matador Arms MAT-9 Upper Receiver Assembly - Gen2, Black
Matador Arms MAT-9 Upper Receiver Assembly - Gen2, Black
$599.99 $429.99
Matador Arms Montgo-9 Complete 9mm Upper
Matador Arms Montgo-9 Complete 9mm Upper
$594.99 $399.99
Aero Precision X15 Serialized AR15 Stripped Lower Receiver - Gen 2 Anodized
Aero Precision X15 Serialized AR15 Stripped Lower Receiver - Gen 2 Anodized
$119.99 $99.99
Aero Precision LR-308 M5 Bare Stripped Lower Receiver - DPMS Cut
Aero Precision LR-308 M5 Bare Stripped Lower Receiver - DPMS Cut
$204.99 $174.99
Davidson Defense 'Key Lock' 7.5-inch AR-15 .223 Wylde Nitride Pistol Upper Build PRE-ASSEMBLED
Davidson Defense 'Key Lock' 7.5-inch AR-15 .223 Wylde Nitride Pistol Upper Build PRE-ASSEMBLED
$139.99 $119.99
Davidson Defense 'Rosco Rizzo' 16-inch AR-15 5.56 NATO Nitride Rifle Upper Build Kit
Davidson Defense 'Rosco Rizzo' 16-inch AR-15 5.56 NATO Nitride Rifle Upper Build Kit
$249.99 $139.49
MMC Customs LR-308 Lower Receiver Build Kit Featuring Aero Precision M5 Lower Receiver Davidson Defense Sopmod Buttstock Recoil Technologies LR-308 LPK (Assembled or Unassembled)
MMC Customs LR-308 Lower Receiver Build Kit Featuring Aero Precision M5 Lower Receiver Davidson Defense Sopmod Buttstock Recoil Technologies LR-308 LPK (Assembled or Unassembled)
$264.99 $179.99
Davidson Defense 'M.A.V. 12 in 5.56' 16-inch AR-15 5.56 NATO Nitride Rifle Full Build Kit
Davidson Defense 'M.A.V. 12 in 5.56' 16-inch AR-15 5.56 NATO Nitride Rifle Full Build Kit
$589.99 $369.99
Davidson Defense 'Rapid Resolution w/ FLX01' 16.5-inch AR-15 5.56 NATO Nitride Rifle Full Build Kit
Davidson Defense 'Rapid Resolution w/ FLX01' 16.5-inch AR-15 5.56 NATO Nitride Rifle Full Build Kit
$504.99 $292.49
PREASSEMBLED-MMC 'Penny Blaster' 4.5-inch AR-15 9mm Nitride Pistol Upper Build Kit
PREASSEMBLED-MMC 'Penny Blaster' 4.5-inch AR-15 9mm Nitride Pistol Upper Build Kit
$214.99 $107.99
Davidson Defense 'PREASSEMBLED-The Novice' 16-inch AR-15 5.56 NATO Parkerized Rifle Upper Build Kit
Davidson Defense 'PREASSEMBLED-The Novice' 16-inch AR-15 5.56 NATO Parkerized Rifle Upper Build Kit
$289.99 $134.99
Davidson Defense 'Jet Medallion' 16-inch AR-15 .223 Wylde Parkerized Rifle Full Build Kit
Davidson Defense 'Jet Medallion' 16-inch AR-15 .223 Wylde Parkerized Rifle Full Build Kit
$439.99 $247.49
Davidson Defense 'MAV9' 11-inch AR-15 9mm Nitride Pistol Upper Build Kit
Davidson Defense 'MAV9' 11-inch AR-15 9mm Nitride Pistol Upper Build Kit
$239.99 $149.99
Davidson Defense 'Bulldog' 16-inch AR-15 5.56 NATO Nitride Rifle Complete Upper Build
Davidson Defense 'Bulldog' 16-inch AR-15 5.56 NATO Nitride Rifle Complete Upper Build
$359.99 $202.49
Davidson Defense 'Sawbones' 16.5-inch AR-15 5.56 NATO Nitride Rifle Upper Build Kit
Davidson Defense 'Sawbones' 16.5-inch AR-15 5.56 NATO Nitride Rifle Upper Build Kit
$349.99 $152.99
MMC Top Shelf
MMC Top Shelf "Ironstone" 16.5" AR-15 5.56 Nitride Upper Build Kit W/ Mercury Precision, Unique AR
$304.99 $189.99

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  • ELITE AR-15 Upper & Lower Build Kits ELITE AR-15 Upper & Lower Build Kits
  • Upper Builds Under $199.99 Upper Builds Under $199.99
  • Upper Build Kits Upper Build Kits
  • Lower Build Kits Lower Build Kits
  • Complete Upper Build Kits Complete Upper Build Kits
  • Full Build Kits (Everything Minus Lower) Full Build Kits (Everything Minus Lower)
  • Side Charging Upper Receiver Builds Side Charging Upper Receiver Builds
  • Top Shelf Build Kits Top Shelf Build Kits
  • Upper Build Starter Kits Upper Build Starter Kits
  • Finish Your Build Kit Finish Your Build Kit
  • Receiver Sets Receiver Sets
  • Builder Sets Builder Sets
  • Lightshow 5.56

Products [1275]

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Preassembled - Davidson Defense 'Dano w/ SB Tactical SBM4 Brace' 14.5-inch AR-15 5.56 NATO Phosphate Pistol Full Build Kit
Preassembled - Davidson Defense 'Dano w/ SB Tactical SBM4 Brace' 14.5-inch AR-15 5.56 NATO Phosphate Pistol Full Build Kit
$484.99 $304.99 Sale
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Preassembled Upper - Davidson Defense 'Dano w/ SB Tactical SBA5 Brace' 14.5-inch AR-15 5.56 NATO Phosphate Pistol Full Build Kit
Preassembled Upper - Davidson Defense 'Dano w/ SB Tactical SBA5 Brace' 14.5-inch AR-15 5.56 NATO Phosphate Pistol Full Build Kit
$539.99 $339.99 Sale
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Preassembled Upper - Davidson Defense 'Dano w/ SB Tactical SBA3 Brace' 14.5-inch AR-15 5.56 NATO Phosphate Pistol Full Build Kit
Preassembled Upper - Davidson Defense 'Dano w/ SB Tactical SBA3 Brace' 14.5-inch AR-15 5.56 NATO Phosphate Pistol Full Build Kit
$529.99 $334.99 Sale
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Preassembled Upper - Davidson Defense 'Dano w/ KAK Brace' 14.5-inch AR-15 5.56 NATO Phosphate Pistol Full Build Kit
Preassembled Upper - Davidson Defense 'Dano w/ KAK Brace' 14.5-inch AR-15 5.56 NATO Phosphate Pistol Full Build Kit
$449.99 $284.99 Sale
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Preassembled Upper - Davidson Defense 'Dano w/ Gauntlet Arms Brace' 14.5-inch AR-15 5.56 NATO Phosphate Pistol Full Build Kit
Preassembled Upper - Davidson Defense 'Dano w/ Gauntlet Arms Brace' 14.5-inch AR-15 5.56 NATO Phosphate Pistol Full Build Kit
$419.99 $264.99 Sale
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Preassembled Upper - Davidson Defense 'Dano' 14.5-inch AR-15 5.56 NATO Phosphate Pistol Complete Upper Build
Preassembled Upper - Davidson Defense 'Dano' 14.5-inch AR-15 5.56 NATO Phosphate Pistol Complete Upper Build
$324.99 $204.99 Sale
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Davidson Defense 'Hollin (Suppressor Ready)' 16-inch AR-15 .458 SOCOM Nitride Rifle Full Build Kit
Davidson Defense 'Hollin (Suppressor Ready)' 16-inch AR-15 .458 SOCOM Nitride Rifle Full Build Kit
$579.99 $364.99 Sale
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Davidson Defense 'Hollin (Suppressor Ready)' 16-inch AR-15 .458 SOCOM Nitride Rifle Complete Upper Build
Davidson Defense 'Hollin (Suppressor Ready)' 16-inch AR-15 .458 SOCOM Nitride Rifle Complete Upper Build
$444.99 $279.99 Sale
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Davidson Defense 'Hollin (Suppressor Ready)' 16-inch AR-15 .458 SOCOM Nitride Rifle Upper Build Kit
Davidson Defense 'Hollin (Suppressor Ready)' 16-inch AR-15 .458 SOCOM Nitride Rifle Upper Build Kit
$319.99 $199.99 Sale
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Davidson Defense 'The Arbiter' 16-inch AR-15 5.56 NATO Nitride Rifle Full Build Kit
Davidson Defense 'The Arbiter' 16-inch AR-15 5.56 NATO Nitride Rifle Full Build Kit
$499.99 $314.99 Sale
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Davidson Defense 'The Arbiter' 16-inch AR-15 5.56 NATO Nitride Rifle Complete Upper Build
Davidson Defense 'The Arbiter' 16-inch AR-15 5.56 NATO Nitride Rifle Complete Upper Build
$374.99 $234.99 Sale
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Davidson Defense 'The Arbiter' 16-inch AR-15 5.56 NATO Nitride Rifle Upper Build Kit
Davidson Defense 'The Arbiter' 16-inch AR-15 5.56 NATO Nitride Rifle Upper Build Kit
$254.99 $159.99 Sale
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Davidson Defense 'Honest Work w/SBA3 Brace' 10.5-inch AR-15 5.56 NATO Nitride Pistol Full Build Kit
Davidson Defense 'Honest Work w/SBA3 Brace' 10.5-inch AR-15 5.56 NATO Nitride Pistol Full Build Kit
$539.99 $339.99 Sale
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Davidson Defense 'Honest Work w/SBA5 Brace' 10.5-inch AR-15 5.56 NATO Nitride Pistol Full Build Kit
Davidson Defense 'Honest Work w/SBA5 Brace' 10.5-inch AR-15 5.56 NATO Nitride Pistol Full Build Kit
$539.99 $339.99 Sale
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Davidson Defense 'Honest Work w/KAK Brace' 10.5-inch AR-15 5.56 NATO Nitride Pistol Full Build Kit
Davidson Defense 'Honest Work w/KAK Brace' 10.5-inch AR-15 5.56 NATO Nitride Pistol Full Build Kit
$454.99 $284.99 Sale
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Davidson Defense 'Honest Work w/Gauntlet Arms Brace' 10.5-inch AR-15 5.56 NATO Nitride Pistol Full Build Kit
Davidson Defense 'Honest Work w/Gauntlet Arms Brace' 10.5-inch AR-15 5.56 NATO Nitride Pistol Full Build Kit
$424.99 $264.99 Sale
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Davidson Defense 'Honest Work w/SBM4 Brace' 10.5-inch AR-15 5.56 NATO Nitride Pistol Full Build Kit
Davidson Defense 'Honest Work w/SBM4 Brace' 10.5-inch AR-15 5.56 NATO Nitride Pistol Full Build Kit
$484.99 $304.99 Sale
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Davidson Defense 'Honest Work' 10.5-inch AR-15 5.56 NATO Nitride Pistol Complete Upper Build
Davidson Defense 'Honest Work' 10.5-inch AR-15 5.56 NATO Nitride Pistol Complete Upper Build
$334.99 $209.99 Sale
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Davidson Defense 'Honest Work' 10.5-inch AR-15 5.56 NATO Nitride Pistol Upper Build Kit
Davidson Defense 'Honest Work' 10.5-inch AR-15 5.56 NATO Nitride Pistol Upper Build Kit
$214.99 $134.99 Sale
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Davidson Defense 'Fellwar Stone' 18-inch AR-15 5.56 NATO Stainless Steel Rifle Full Build Kit
Davidson Defense 'Fellwar Stone' 18-inch AR-15 5.56 NATO Stainless Steel Rifle Full Build Kit
$564.99 $354.99 Sale
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Davidson Defense 'Fellwar Stone' 18-inch AR-15 5.56 NATO Stainless Steel Rifle Complete Upper Build
Davidson Defense 'Fellwar Stone' 18-inch AR-15 5.56 NATO Stainless Steel Rifle Complete Upper Build
$444.99 $279.99 Sale
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Davidson Defense 'Fellwar Stone' 18-inch AR-15 5.56 NATO Stainless Steel Rifle Upper Build Kit
Davidson Defense 'Fellwar Stone' 18-inch AR-15 5.56 NATO Stainless Steel Rifle Upper Build Kit
$334.99 $209.99 Sale
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Davidson Defense 'Doodle 2.0 in .300 BLK' 16-inch AR-15 .300BLK Phosphate Rifle Full Build Kit
Davidson Defense 'Doodle 2.0 in .300 BLK' 16-inch AR-15 .300BLK Phosphate Rifle Full Build Kit
$479.99 $299.99 Sale
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Davidson Defense 'Doodle 2.0 in .300 BLK' 16-inch AR-15 .300BLK Phosphate Rifle Complete Upper Build
Davidson Defense 'Doodle 2.0 in .300 BLK' 16-inch AR-15 .300BLK Phosphate Rifle Complete Upper Build
$389.99 $244.99 Sale
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1 2 3 4 5 6 7 ...54 Next Page View All

Our MMC Combos AR-15 and LR-308 Upper Build Kits make it easy to get started on your custom build. Our expert team plans these combos to make sure that all parts are compatible to take any guess work out of the equation. We carry combos that fit any budget from plinker to competition and anything in between. Some of the brands that are featured in our combos are MMC Armory, Faxon, Fail Zero, Fortis, Odin Works, Guntech, Armaspec, 3rd Gen Tactical, Battle Arms Developement, and many more. We also have options in a wide variety of calibers such as .223 Wylde, 5.56 NATO, .224 Valkyrie, 350 Legend, .458 SOCOM, 12.7x42 (.50 Beowulf), .450 Bushmaster, 9mm, 7.62x39, 300 Blackout (AAC), 6.5 Creedmoor, 6.5 Gendel, 45 ACP, and .243 WIN
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