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Shop for Sig Sauer
Shop for a variety of fully built AR-15 upper receivers with varying barrel lengths as short at 5.5" and as long as 18". We stock and sell uppers from Advanced Armament, Spikes Tactical, Sig Sauer, Primary Weapons Systems, Tactical Solutions, Blackheart International, and Troy Industries.
AR-15 upper receivers are offered in quite a few calibers and we carry many including .22lr, 5.56 Nato, .300 Blackout, 5.7x28, and 9mm.
AR-15 upper receivers are offered in quite a few calibers and we carry many including .22lr, 5.56 Nato, .300 Blackout, 5.7x28, and 9mm.
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Sig Sauer M400 / AR15 Stripped Upper Receiver
$199.99 -
Sig Sauer MCX AR15 Conversion Kit - 11.5" 5.56mm NATO
$1,489.99Out of stock
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Sig Sauer MCX AR15 Conversion Kit - 16" .300 BLK
$1,489.99 -
Sig Sauer MCX AR15 Conversion Kit - 16" 5.56mm NATO
$1,489.99Out of stock
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Sig Sauer MCX Conversion Kit w/ 2-Stage Trigger - 9" .300 BLK
$1,439.00Out of stock
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Sig Sauer MCX Rattler AR15 Conversion Kit - 5.5" .300 Blackout
$1,579.99Out of stock
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Sig Sauer MCX Rattler AR15 Conversion Kit - 5.5" 5.56mm NATO
$1,579.99Out of stock
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Sig Sauer MCX Upper Receiver - 16" 5.56mm NATO
$1,199.00Out of stock
