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- AR-15 | AR-10 > AR15 - .22LR > 22LR Uppers
- AR-15 | AR-10 > AR47 - 7.62x39 > 7.62x39 Uppers
- AR-15 | AR-10 > AR15 - 300 Blackout > 300 Blackout Uppers
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- Upper Parts
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- AR-15 | AR-10 > AR15 - 5.56 NATO
- AR-15 | AR-10 > AR15 - 300 Blackout
- AR-15 | AR-10 > AR9 - 9mm
- AR-15 | AR-10 > AR10 - .308 | 762x51
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- AR-15 | AR-10 > AR15 - .22LR
- AR-15 | AR-10 > AR15 - 350 Legend
- AR-15 | AR-10 > AR15 - 350 Legend > 350 Legend Uppers
- AR-15 | AR-10 > AR15 - .22LR > 22LR Build Kits
- AR-15 | AR-10 > AR15 - 350 Legend > 350 Legend Build Kits
- AR-15 | AR-10 > AR10 - 6.5 Creedmoor > 6.5 Creedmoor Uppers
- AR-15 | AR-10 > AR-15 - 223 Wylde
- AR-15 | AR-10 > AR-15 - 223 Wylde > 223 Wylde Uppers
- AR-15 | AR-10 > AR15 - 450 Bushmaster > 450 Bushmaster Uppers
- Lower Parts > Safety Selector
- Upper Parts > Dust Covers & Forward Assists
- Survival > Non-Lethal Defense
- Upper Parts > Upper Receivers
- AR-15 | AR-10 > AR15 - 6.5 Grendel
- AR-15 | AR-10 > AR15 - 6.5 Grendel > 6.5 Grendel Uppers
- AR-15 | AR-10 > AR15 6mm ARC
- AR-15 | AR-10 > AR15 6mm ARC > 6mm ARC Uppers
- AR-15 | AR-10 > AR-10 - 8.6 Blackout
- AR-15 | AR-10 > AR-10 - 8.6 Blackout > 8.6 Blackout Uppers
Brands
Ghost Firearms , Grid Defense , Daniel Defense , ALG Defense , Maxim Defense , F.A.B. Defense-
FAQ(Page)
Ordering and Shipping When Will My Order Ship? Upper receivers are currently shipping within 2-4 Business Days and Small Parts within 1-2 Business Days. When Will I Receive a Tracking Numb ...
About Us(Page)Welcome to Grid Defense, your premier destination for top-quality AR15, AR10, AR9 and AR47 firearm components and accessories. We are a leading online retailer dedicated to providing firearm enthusia ...
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Out of stockOn Sale
Grid Defense 16" 5.56 Upper Receiver - Gold
Sale: $339.00MSRP: $409.00Grid Defense 16" 5.56 Upper Receiver - Gold Finished in FX Gold Cerakote Chambered in 5.56x45 NATO 14" M-Lok Rail 16" 1:7 4150 M4 Barrel - Black Nitride Carbine Length Gas System A2 Flash...Sale: $339.00MSRP: $409.00 -
On Sale
Grid Defense 16" 5.56 Upper Receiver With 12" Rail - Gold
Sale: $339.00MSRP: $409.00Grid Defense 16" 5.56 Upper Receiver With 12" Rail - Gold Finished in FX Gold Cerakote Chambered in 5.56x45 NATO 12" Free Float M-LOK Handguard 16" 1:7 4150 M4 Barrel - Black Nitride Carbine...Sale: $339.00MSRP: $409.00 -
Out of stockOn Sale
Grid Defense 7.5" 5.56 Flash Can Upper Receiver - Gold
Sale: $339.00MSRP: $409.00Grid Defense 7.5" 5.56 Flash Can Upper Receiver - Gold Finished in Cerakote FX Gold 5.56 Upper Receiver 7075-T6 Mil-Spec Upper Receiver 7.5" 1:7 Twist 4150 M4 Barrel - Black Nitride Chambered...Sale: $339.00MSRP: $409.00 -
On Sale
Grid Defense HEX 16" 5.56 NATO Upper Receiver - Gold
Sale: $349.00MSRP: $419.00Grid Defense HEX 16" 5.56 NATO Upper Receiver - Gold FX Gold Cerakote Finish Chambered in 5.56 NATO 16" 4150 Nitride Barrel 1:7 Twist Rate 1/2x28 TPI Thread Pitch Black A2 Muzzle...Sale: $349.00MSRP: $419.00 -
Out of stock
Odin Works Billet AR-15 9MM Upper Receiver - Black
$129.00Odin Works Billet AR-15 9MM Upper Receiver - Black 7075 Billet Aluminum NO Forward Assist Low Profile Brass Deflector$129.00 -
Out of stockOn Sale
Ghost IHS 5" 5.56 NATO Upper Receiver - Gold
Sale: $269.00MSRP: $339.00Ghost IHS 5" 5.56 Upper - Gold Cerakote FX Gold Upper Receiver Chambered in 5.56x45 NATO (5.56/.223) A2 Flash Hider 5" 1:5 Twist 4150 Chrome Moly Vanadium Barrel 1/2x28 Thread...Sale: $269.00MSRP: $339.00 -
Out of stockOn Sale
AMBI CHARGING HANDLE + GOLD M16 BCG COMBO
Sale: $129.99MSRP: $188.99AMBI CHARGING HANDLE + GOLD M16 BCG COMBO Gold AR15 Bolt Carrier Group Milspec Carpenter No. 158® steel bolt Shot Peened Bolt Gas Key Hardened to USGI Specifications Gas Key Grade 8...Sale: $129.99MSRP: $188.99 -
FORTIS SLS FIFTY SAFETY SELECTOR - GOLD
$69.95FORTIS SLS FIFTY SAFETY SELECTOR - GOLD Precise Manufacturing Long Term Reliability Durable Construction High quality components and precise manufacturing make Fortis parts ideal for...$69.95 -
Out of stockOn Sale
Grid Defense 7.5" 5.56 Upper Receiver - Periwinkle
Sale: $259.00MSRP: $379.00Grid Defense 7.5" 5.56 Upper Receiver - Periwinkle Finished in Periwinkle Cerakote AR15 Skeletonized Upper Mil Spec 7075-T6 Upper Receiver 7.5" 1:7 Twist 4150 M4 Barrel - Black Nitride 7"...Sale: $259.00MSRP: $379.00 -
On Sale
Grid Defense 7.5" 5.56 Upper Receiver - FDE
Sale: $299.00MSRP: $379.00Grid Defense 7.5" 5.56 Upper Receiver Finished in Magpul Flat Dark Earth Cerakote Mil Spec 7075-T6 Upper Receiver 7.5" 1:7 Twist 4150 M4 Barrel - Black Nitride 7" Grid Defense Octagon M-Lok...Sale: $299.00MSRP: $379.00 -
Out of stockOn Sale
Grid Defense 7.5" 5.56 Upper Receiver - Pink Champagne
Sale: $299.00MSRP: $379.00Grid Defense 7.5" 5.56 Upper Receiver - Pink Champagne Finished in Pink Champagne Cerakote AR15 Skeletonized Upper Mil Spec 7075-T6 Upper Receiver 7.5" 1:7 Twist 4150 M4 Barrel - Black Nitride 7"...Sale: $299.00MSRP: $379.00 -
On Sale
Grid Defense 7.5" 5.56 Upper Receiver - Tungsten Gray
Sale: $299.00MSRP: $379.00Grid Defense 7.5" 5.56 Upper Receiver Finished in Tungsten Gray Cerakote AR15 Skeletonized Upper Mil Spec 7075-T6 Upper Receiver 7.5" 1:7 Twist 4150 M4 Barrel - Black Nitride 7" Grid Defense...Sale: $299.00MSRP: $379.00 -
On Sale
Grid Defense 7.5" 5.56 Upper Receiver - OD Green
Sale: $299.00MSRP: $379.00GRID DEFENSE 7.5" 5.56 OD GREEN UPPER RECEIVER Finished in Magpul Olive Drab Green Cerakote Mil Spec 7075-T6 Upper Receiver 7.5" 1:7 Twist 4150 M4 Barrel - Black Nitride 7" Grid Defense...Sale: $299.00MSRP: $379.00 -
Out of stockOn Sale
Grid Defense 7.5" 5.56 Upper Receiver - Tactical Grape
Sale: $299.00MSRP: $379.00Grid Defense 7.5" 5.56 Upper Receiver Finished in Purple Cerakote Mil Spec 7075-T6 Upper Receiver 7.5" 1:7 Twist 4150 M4 Barrel - Black Nitride 7" Grid Defense Octagon M-Lok Rail Pistol Length...Sale: $299.00MSRP: $379.00 -
Out of stockOn Sale
Grid Defense 7.5" 5.56 Upper Receiver - Tequila Sunrise
Sale: $259.00MSRP: $379.00Grid Defense 7.5" 5.56 Upper Receiver - Tequila Sunrise Mil-Spec Dust Cover and Forward Assist Finished in Tequila Sunrise Cerakote Mil Spec 7075-T6 Upper Receiver 7.5" 4150 M4 Barrel - Black...Sale: $259.00MSRP: $379.00 -
Grid Defense Suppressor Ready 16" 5.56 NATO Upper Receiver
$349.00Grid Defense Suppressor Ready 16" 5.56 NATO Upper Upper Specifications Mil-Spec Upper Receiver Machined from 7075-T6 Forging Mil-Spec dust cover and forward assist Made in the USA 14"...$349.00 -
Grid Defense Suppressor Ready 16" .300 Blackout Upper Receiver
$349.00Grid Defense Suppressor Ready 16" .300 Blackout Upper Upper Specifications Mil-Spec Upper Receiver Machined from 7075-T6 Forging Mil-Spec dust cover and forward assist Made in the...$349.00 -
Grid Defense Suppressor Ready 10.5" .300 Blackout Upper Receiver
$319.00Grid Defense Suppressor Ready 10.5" .300 Blackout Upper Upper Specifications Mil-Spec Upper Receiver Machined from 7075-T6 Forging Mil-Spec dust cover and forward assist Made in the...$319.00 -
Grid Defense Suppressor Ready 10.5" 5.56 NATO Upper Receiver
$319.00Grid Defense Suppressor Ready 10.5" 5.56 NATO Upper Upper Specifications Mil-Spec Upper Receiver Machined from 7075-T6 Forging Mil-Spec dust cover and forward assist Made in the...$319.00 -
On Sale
Grid Defense 7.5" 5.56 Upper Receiver - Blue Titanium
Sale: $299.00MSRP: $379.00Grid Defense 7.5" 5.56 Upper Receiver Finished in Blue Titanium Cerakote Mil Spec 7075-T6 Upper Receiver 7.5" 1:7 Twist 4150 M4 Barrel - Black Nitride 7" Grid Defense Octagon M-Lok...Sale: $299.00MSRP: $379.00 -
On Sale
GRID DEFENSE 10.5" 9MM UPPER RECEIVER - BLACK
Sale: $299.00MSRP: $379.00Grid Defense 10.5" 9mm Upper Receiver - Black Hard Coat Black Anodized Mil Spec 7075-T6 Upper Receiver 10.5" 9MM Barrel Chrome Moly Vanadium 1:10 Twist Rate Straight Profile Barrel QPQ...Sale: $299.00MSRP: $379.00 -
On Sale
GRID DEFENSE 10.5" 9MM UPPER RECEIVER - FDE
Sale: $299.00MSRP: $379.00Grid Defense 10.5" 9mm Upper Receiver - FDE Finished in Flat Dark Earth Cerakote Mil Spec 7075-T6 Upper Receiver 10.5" 9MM Barrel Chrome Moly Vanadium 1:10 Twist Rate Straight Profile...Sale: $299.00MSRP: $379.00 -
On Sale
GRID DEFENSE 10.5" 9MM UPPER RECEIVER - OD GREEN
Sale: $299.00MSRP: $379.00Grid Defense 10.5" 9mm Upper Receiver - OD Green Finished in Olive Drab Green Cerakote Mil Spec 7075-T6 Upper Receiver 10.5" 9MM Barrel Chrome Moly Vanadium 1:10 Twist Rate Straight Profile...Sale: $299.00MSRP: $379.00 -
On Sale
GRID DEFENSE 10.5" 9MM UPPER RECEIVER - BURNT BRONZE
Sale: $299.00MSRP: $379.00Grid Defense 10.5" 9mm Upper Receiver - Burnt Bronze Finished in Burnt Bronze Cerakote Mil Spec 7075-T6 Upper Receiver 10.5" 9MM Barrel Chrome Moly Vanadium 1:10 Twist Rate Straight Profile...Sale: $299.00MSRP: $379.00 -
On Sale
GRID DEFENSE 10.5" 9MM UPPER RECEIVER - TUNGSTEN GRAY
Sale: $299.00MSRP: $379.00Grid Defense 10.5" 9mm Upper Receiver - Tungsten Gray Finished in Tungsten Gray Cerakote Mil Spec 7075-T6 Upper Receiver 10.5" 9MM Barrel Chrome Moly Vanadium 1:10 Twist Rate Straight Profile...Sale: $299.00MSRP: $379.00 -
On Sale
GRID DEFENSE 10.5" 9MM UPPER RECEIVER - BLUE TITANIUM
Sale: $299.00MSRP: $379.00Grid Defense 10.5" 9mm Upper Receiver - Blue Titanium Finished in Blue Titanium Cerakote Mil Spec 7075-T6 Upper Receiver 10.5" 9MM Barrel Chrome Moly Vanadium 1:10 Twist Rate Straight Profile...Sale: $299.00MSRP: $379.00 -
On Sale
Grid Defense 16" 300 Blackout Upper Receiver - Burnt Bronze
Sale: $329.00MSRP: $399.00Grid Defense 16" 300 Blackout Upper Receiver - Burnt Bronze Burnt Bronze Cerakote Finish Chambered in .300 Blackout (7.62x35) A2 Flash Hider 16" 1:8 Twist 4150 Light HBar Barrel Pistol Length Gas...Sale: $329.00MSRP: $399.00 -
On Sale
Grid Defense 16" 300 Blackout Upper Receiver - Tungsten Gray
Sale: $329.00MSRP: $399.00Grid Defense 16" 300 Blackout Upper Receiver - Tungsten Gray Tungsten Gray Cerakote Finish Chambered in .300 Blackout (7.62x35) A2 Flash Hider 16" 1:8 Twist 4150 Light HBar Barrel - Black Nitride...Sale: $329.00MSRP: $399.00 -
On Sale
Grid Defense 16" 7.62x39 Upper Receiver - Burnt Bronze
Sale: $329.00MSRP: $399.00Grid Defense 16" 7.62x39 Upper Receiver - Burnt Bronze Finished in Burnt Bronze Cerakote Chambered in 7.62x39 16" 4150 1:10 Twist Light HBar Barrel - Black Nitride Carbine Gas System A2...Sale: $329.00MSRP: $399.00 -
On Sale
Grid Defense 16" 9mm Upper Receiver - FDE
Sale: $329.00MSRP: $399.00Grid Defense 16" 9mm Upper Receiver - FDE Finished in Magpul Flat Dark Earth Cerakote Milspec 7075-T6 Upper Receiver 1/2x36 Thread Pattern 16" 1:10 Twist 4150 Light HBar Barrel - Black Nitride 14"...Sale: $329.00MSRP: $399.00 -
On Sale
Grid Defense 16" 9mm Upper Receiver - Burnt Bronze
Sale: $329.00MSRP: $399.00Grid Defense 16" 9mm Upper Receiver - Burnt Bronze Finished in Burnt Bronze Cerakote Milspec 7075-T6 Upper Receiver 1/2x36 Thread Pattern 16" 1:10 Twist 4150 Light HBar Barrel - Black Nitride 14"...Sale: $329.00MSRP: $399.00 -
On Sale
Grid Defense 16" 9mm Upper Receiver - Blue Titanium
Sale: $329.00MSRP: $399.00Grid Defense 16" 9mm Upper Receiver - Blue Titanium Finished in Blue Titanium Cerakote Milspec 7075-T6 Upper Receiver 16" 1:10 Twist 4150 Light HBar Barrel - Black Nitride 1/2x36 Thread Pattern 14"...Sale: $329.00MSRP: $399.00 -
Out of stockOn Sale
Grid Defense 16" 9mm Upper Receiver - Tactical Grape
Sale: $329.00MSRP: $399.00Grid Defense 16" 9mm Upper Receiver - Tactical Grape Finished in Purple Cerakote Milspec 7075-T6 Upper Receiver 1/2x36 Thread Pattern 16" 1:10 Twist 4150 Light HBar Barrel - Black Nitride 14" Grid...Sale: $329.00MSRP: $399.00 -
On Sale
Grid Defense 7.5" .300 Blackout Flash Can Upper Receiver - Blue Titanium
Sale: $329.00MSRP: $399.00Grid Defense 7.5" .300 Blackout Upper Receiver - Blue Titanium Finished in Blue Titanium Cerakote Made in the USA Mil-spec 7075-T6 Upper Receiver Chambered in .300 Blackout (7.62x35) 1:8 Twist 4150...Sale: $329.00MSRP: $399.00 -
On Sale
Grid Defense 10.5" .300 Blackout Flash Can Upper Receiver - Black
Sale: $329.00MSRP: $399.00Grid Defense 10.5" .300 Blackout Flash Can Upper Receiver Hard Coat Black Anodized Finish Made in the USA 7075-T6 Mil-Spec Upper Receiver 10.5" 1:8 Twist 4150 Light HBar Barrel - Black...Sale: $329.00MSRP: $399.00 -
On Sale
Grid Defense 7.5" .300 Blackout Flash Can Upper Receiver - Black Anodized
Sale: $329.00MSRP: $399.00Grid Defense 7.5" .300 Blackout Flash Can Upper - Black Made in the USA Pistol Length Gas System Dimpled Flash Can 9" Grid Defense Octagon M-Lok Rail Chambered in .300 Blackout (7.62x35) 1:8 Twist...Sale: $329.00MSRP: $399.00 -
On Sale
Grid Defense 16" 9mm Upper Receiver - OD Green
Sale: $329.00MSRP: $399.00Grid Defense 16" 9mm Upper Receiver - OD Green Finished in Magpul Olive Drab Green Cerakote Milspec 7075-T6 Upper Receiver 1/2x36 Thread Pattern 16" 1:10 Twist 4150 Light HBar Barrel - Black...Sale: $329.00MSRP: $399.00 -
On Sale
Grid Defense 16" 9mm Stainless Steel Upper Receiver - FDE
Sale: $329.00MSRP: $399.00Grid Defense 16" 9mm Stainless Steel Upper Receiver - FDE Finished in Flat Dark Earth Cerakote Milspec 7075-T6 Upper Receiver 16" 416R Stainless Steel Barrel with 1:10 Twist Rate 1/2x36 Thread...Sale: $329.00MSRP: $399.00 -
On Sale
Grid Defense 16" 9mm Upper Receiver - Tungsten Gray
Sale: $329.00MSRP: $399.00Grid Defense 16" 9mm Upper Receiver - Tungsten Gray Finished in Tungsten Gray Cerakote Milspec 7075-T6 Upper Receiver 16" 1:10 Twist 4150 Light HBar Barrel - Black Nitride 1/2x36 Thread Pattern 14"...Sale: $329.00MSRP: $399.00 -
On Sale
Grid Defense 16" 5.56 Upper Receiver - Burnt Bronze
Sale: $329.00MSRP: $399.00Grid Defense 16" 5.56 AR-15 Upper Receiver - Burnt Bronze Burnt Bronze Cerakote Finish Burnt Bronze Complete Upper Chambered in 5.56x45 NATO 14" M-Lok Rail 16" 1:7 4150 M4 Barrel - Black...Sale: $329.00MSRP: $399.00
Featured
Ghost Suppressor Ready IHS 5" .300 Blackout Upper Receiver
$259.00 - $279.00
Ghost Suppressor Ready IHS 5.5" .300 Blackout Upper
Upper Specifications
Mil-Spec Upper Receiver
Machined from 7075-T6 Forging
Mil-Spec dust cover and forward assist
Made in the...
On Sale
AR-15 Stripped Upper Receiver Without Forward Assist
Sale:
$69.00
MSRP:
$139.99
AR-15 Stripped Upper Receiver Without Forward Assist
Made in the USA
Multi-Caliber
M4 Feed Ramps
Shell Deflector
Dust Cover Ready
Forged 7075 T6 Aluminum
Semi-Slick Design without forward...
On Sale
Blem Billet AR-10 Stripped Upper Receiver - Black
Sale:
$59.00
MSRP:
$149.00
BLEM BILLET AR-10 STRIPPED UPPER RECEIVER - BLACK
High Profile DPMS Pattern
6061 Billet Aluminum
Anodized Black Finish
Made in the USA
Uppers have cosmetic imperfections only. These parts are...
On Sale
Black Spider Micro Red Dot Optic
Sale:
$80.00
MSRP:
$120.00
Black Spider Micro Red Dot
1x20mm
3 MOA
Battery Not Included
Dust Caps for Front and Rear Lens
On Sale
Mil-Spec Carbine Buffer Tube Assembly
$37.00 - $45.00
Mil-Spec Carbine Buffer Tube Assembly
Made in the USA
Compatible with M4 Type Butt Stocks
6 Position Carbine Buffer Tube
Machined from 7075-T6 Aluminum
End Plate
Castle Nut
Carbine Buffer...
On Sale
Surefire M640V Scout Pro Flashlight
Sale:
$449.00
MSRP:
$499.00
Includes Picatinny and M-LOK Low-Profile Mounts
Virtually Indestructible Ultra-High-Output LED and IR
Includes Z68 Momentary/Constant-On Tailcap
No IR Filter Required
Powered by Two 12
On Sale
16" 9mm 1:10 Twist 416R Stainless Steel Barrel
Sale:
$60.00
MSRP:
$160.00
16" 9mm 1:10 Twist 416R Stainless Steel Barrel
Made in the USA
16" in Length
1:10 Twist Rate
416R Stainless Steel
Chambered in 9x19 Para
Thread Pattern - 1/2x36
On Sale
BLEM ALWAYS ARMED OCT2 SERIES 16" 9MM UPPER RECEIVER - BLACK
Sale:
$169.00
MSRP:
$269.00
BLEMISHED ALWAYS ARMED OCT2 SERIES 16" 9MM UPPER RECEIVER - BLACK
Made in the USA
Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist
16" 1:10 Twist 4150 Barrel with Black...
Grid Defense 18" 5.56 NATO Rifle Length Upper Receiver
$349.00
Grid Defense 18" 5.56 NATO Rifle Length Upper Receiver
Chambered in 5.56 NATO
14" Free Float M-Lok Rail
18" 1:7 Twist Government Profile 4150 Barrel - Black Nitride
Rifle Length Gas...
On Sale
Grid Defense 20" 350 Legend Upper Receiver - Black
Sale:
$349.00
MSRP:
$419.00
Grid Defense 20" .350 Legend Upper Receiver - Black
Hard Coat Black Anodized
Chambered in .350 Legend
14" Free Float M-Lok Rail
20" 1:16 4150 Barrel - Black Nitride
Carbine Length Gas...
On Sale
ALWAYS ARMED 16" 5.56 NATO TR RIFLE KIT - BLACK
Sale:
$349.00
MSRP:
$469.00
ALWAYS ARMED 16" 5.56 NATO TRX RIFLE KIT
Made in the USA
Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist
16" 1:7 Twist 4150 Barrel with Black Nitride Finish
Chambered...
On Sale
ALWAYS ARMED 10.5" 300 BLACKOUT UPPER RECEIVER - BLACK ANODIZED
Sale:
$189.00
MSRP:
$279.00
Always Armed 10.5" 300 Blackout Upper Receiver - Black
Made in the USA
Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist
10.5" 1:8 Twist 4150 Barrel with Black Nitride...