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Upper Receivers

Complete Uppers

5mm Remington Rimfire Magnum

Maxim Defense Gen 2 JP Silent Captured Spring Heavy Buffer and Spring - Maxim Defense

Maxim Defense Gen 2 JP Silent Captured Spring Heavy Buffer and Spring

$178.99 $164.95

Maxim Defense AR-15 CQB Buffer and Spring H3 4.85oz - Maxim Defense

Maxim Defense AR-15 CQB Buffer and Spring H3 4.85oz

Maxim Defense AR-15 CQB Buffer and Spring Pistol 7.6oz - Maxim Defense

Maxim Defense AR-15 CQB Buffer and Spring Pistol 7.6oz

Maxim Defense AR-15 CQB Buffer and Spring H2 4.65oz - Maxim Defense

Maxim Defense AR-15 CQB Buffer and Spring H2 4.65oz

Maxim Defense AR-15 CQB Buffer and Spring H1 4oz - Maxim Defense

Maxim Defense AR-15 CQB Buffer and Spring H1 4oz

Maxim Defense MDX 510 AR-15 Upper Receiver Assembly 7.62x39mm 10.3" Barrel Black - Maxim Defense

Maxim Defense MDX 510 AR-15 Upper Receiver Assembly 7.62x39mm 10.3" Barrel Black

$1,395.00 $1,129.95

Maxim Defense MDX 508 AR-15 Upper Receiver Assembly 300 AAC Blackout 8.5" Barrel Arid - Maxim Defense

Maxim Defense MDX 508 AR-15 Upper Receiver Assembly 300 AAC Blackout 8.5" Barrel Arid

$1,395.00 $1,129.95

Maxim Defense MDX 510 AR-15 Upper Receiver Assembly 5.56x45mm 10.3" Barrel Black - Maxim Defense

Maxim Defense MDX 510 AR-15 Upper Receiver Assembly 5.56x45mm 10.3" Barrel Black

$1,395.00 $1,129.95

Maxim Defense Gen 6 CCS AR-15 Pistol Brace FDE - Maxim Defense

Maxim Defense Gen 6 CCS AR-15 Pistol Brace FDE

Maxim Defense AR-15 SCW Buffer and Spring H3 4.85oz - Maxim Defense

Maxim Defense AR-15 SCW Buffer and Spring H3 4.85oz

Maxim Defense AR-15 SCW Buffer and Spring H2 4.65oz - Maxim Defense

Maxim Defense AR-15 SCW Buffer and Spring H2 4.65oz

Maxim Defense MDX 510 AR-15 Upper Receiver Assembly 300 AAC Blackout 10.3" Barrel Black - Maxim Defense

Maxim Defense MDX 510 AR-15 Upper Receiver Assembly 300 AAC Blackout 10.3" Barrel Black

$1,395.00 $1,129.95

Maxim Defense PDX AR-15 Upper Receiver Assembly 7.62x39mm 5.5" Barrel Black - Maxim Defense

Maxim Defense PDX AR-15 Upper Receiver Assembly 7.62x39mm 5.5" Barrel Black

Maxim Defense MDX 510 AR-15 Upper Receiver Assembly 300 AAC Blackout 10.3" Barrel Arid - Maxim Defense

Maxim Defense MDX 510 AR-15 Upper Receiver Assembly 300 AAC Blackout 10.3" Barrel Arid

Maxim Defense PDX AR-15 Upper Receiver Assembly 7.62x39mm 5.5" Barrel Arid - Maxim Defense

Maxim Defense PDX AR-15 Upper Receiver Assembly 7.62x39mm 5.5" Barrel Arid

Maxim Defense MDX 508 AR-15 Upper Receiver Assembly 5.56x45mm 8.5" Barrel Black - Maxim Defense

Maxim Defense MDX 508 AR-15 Upper Receiver Assembly 5.56x45mm 8.5" Barrel Black

Maxim Defense MDX 508 AR-15 Upper Receiver Assembly 5.56x45mm 8.5" Barrel Arid - Maxim Defense

Maxim Defense MDX 508 AR-15 Upper Receiver Assembly 5.56x45mm 8.5" Barrel Arid

Maxim Defense AR-15 SCW Buffer and Spring H1 4oz - Maxim Defense

Maxim Defense AR-15 SCW Buffer and Spring H1 4oz

Maxim Defense MDX 510 AR-15 Upper Receiver Assembly 5.56x45mm 10.3" Barrel Arid - Maxim Defense

Maxim Defense MDX 510 AR-15 Upper Receiver Assembly 5.56x45mm 10.3" Barrel Arid

$1,395.00 $1,129.95

Maxim Defense MDX 508 AR-15 Upper Receiver Assembly 7.62x39mm 8.5" Barrel Black - Maxim Defense

Maxim Defense MDX 508 AR-15 Upper Receiver Assembly 7.62x39mm 8.5" Barrel Black

Maxim Defense MDX 508 AR-15 Upper Receiver Assembly 300 AAC Blackout 8.5" Barrel Black - Maxim Defense

Maxim Defense MDX 508 AR-15 Upper Receiver Assembly 300 AAC Blackout 8.5" Barrel Black

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