223/5.56 Upper

Windham Weaponry .223/5.56 Rifle Kit with Diamondhead Rear Flip Sight
Upper receiver rifle kit 16m4 less handle rear flip w/bolt, stock & magazine

SKU: KIT-WKUR16M4LHRFB-C

MSRP: $845.00

On Backorder

This 16″ MPC-RF (Rear Flip) Complete Upper Receiver / Barrel Assembly Kit includes the Lower Receiver Parts Kit, a complete...
Upper receiver 14m4 phantom A4 w/bolt

MSRP: $550.00$715.00

On Backorder

This M4 Barreled Upper Assembly is complete and ready to snap onto your Lower. The highly accurate 14.5″ M4 Profile...
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Upper receiver 14m4 1x7 A4 w/bolt

SKU: ur14m4-7a4b

MSRP: $520.00$685.00

On Backorder

This M4 Barreled Upper Assembly is complete and ready to snap onto your Lower. The highly accurate 14.5” M4 Profile...
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Upper receiver 16m4 shaved front site CDI w/bolt

MSRP: $955.00$1,100.00

On Backorder

From our popular CDI Rifle, this accessorized Upper Receiver / Barrel Assembly comes complete with 15″ Windham Weaponry Aluminum M-LOK...
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Upper receiver 16 dissipator A4 w/bolt

MSRP: $565.00$740.00

On Backorder

This 16″ Dissipator Heavy Profile Upper Receiver/ Barrel Assembly is complete, ready to snap onto your lower and take to...
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Upper receiver 16m4 dissipator A4 w/bolt

MSRP: $565.00$740.00

On Backorder

This 16″ Dissipator M4 Profile Upper Receiver Barrel Assembly is complete, ready to snap onto your lower and take to...
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Upper receiver 16 A4 w/bolt

MSRP: $445.00$650.00

On Backorder

This heavy barreled Upper Assembly is complete and ready to snap onto your Lower. A superbly accurate 16” heavy profile barrel...
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Windham Weaponry 16in MPC M4 Profile Rifle Kit
Upper receiver rifle kit 16m4 A4 w/bolt complete less stripped lower

SKU: KIT-WKUR16M4A4B

MSRP: $895.00

On Backorder

Due to state regulations, we can not ship this kit with 30 round magazine to California, District of Columbia, Colorado,...
Upper receiver assembly complete MPC 16m4 A4 w/bolt

MSRP: $445.00$649.00

On Backorder

This  .223/5.56 M4 Barreled Upper Assembly “MPC” is complete and ready to snap onto your Lower. The highly accurate 16″...
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Windham Weaponry 16in MPC-RF-MFT Complete Upper Receiver / Barrel Assembly
Upper receiver rifle kit 16 less handle mft hgds rear flip w/bolt less stripped lower receiver

SKU: KIT-WKUR16M4LHRFMFB

MSRP: $915.00

On Backorder

This M4 Barreled Upper Assembly is complete and ready to snap onto your Stripped Lower when completed. It’s highly accurate...
Upper receiver rifle kit 16 flattop w/bolt complete less lower receiver

SKU: KIT-WKUR16FTB

MSRP: $895.00

On Backorder

The Heavy Barreled version of our popular SRC is a straight turned design .745″ in diameter forward of the gas...
Upper receiver 16 flattop w/bolt

MSRP: $620.00$685.00

On Backorder

Windham Weaponry has had many requests for a Heavy Barreled version of our popular SRC Upper, so this complete Upper...
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Upper receiver rifle kit 16m4 flattop w/bolt complete less stripped lower receiver

SKU: KIT-WKUR16M4FTB

MSRP: $895.00

On Backorder

Due to state regulations, we can not ship this kit with 30 round magazine to California, District of Columbia, Colorado,...
Upper receiver 16m4 flattop w/bolt

MSRP: $463.00$588.00

On Backorder

This is the complete M4 Barreled Upper Assembly from our unique “SRC” rifle. Its tack-driving 16” M4 profile barrel is...
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Windham Weaponry 20in A2 Gov't. Profile Upper Receiver Assembly for AR15 / M16
Upper receiver 20 gvt 1x7 A4 w/bolt

MSRP: $460.00$665.00

On Backorder

This A2 Gov’t. profile barreled Upper Assembly is complete, ready to snap onto your lower and take to the range....
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Windham Weaponry 20in A2 Gov't. Profile Upper Receiver Assembly for AR15 / M16
Upper receiver assembly complete 20 gvt A4 w/bolt

MSRP: $460.00$665.00

In Stock

This A2 Gov’t. profile barreled Upper Assembly is complete, ready to snap onto your lower and take to the range....
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Upper receiver 20 fluted ss flattop threaded w/bolt

SKU: ur20fsssfsb

MSRP: $805.00

In Stock

This Assembly offers an upper from our popular Varmint Exterminator Rifle. This superbly accurate upper is CNC Machined from 7075T6...
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Upper Receiver Complete 20 GVT-7 A1 with bolt

SKU: UR20GVTA1B-7

MSRP: $730.00

On Backorder

This is the complete upper assembly from our re-imagined A1 Government rifle – this rifle includes classic features, but it’s...
UPPER RECEIVER COMPLETE 20 GVT 1X7 -A1 LESS BOLT

SKU: UR20GVTA1-7

MSRP: $606.00

On Backorder

This is the complete upper assembly from our re-imagined A1 Government rifle – it includes classic features, but it’s built...

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