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- AR-15 | AR-10 > AR15 - .22LR > 22LR Uppers
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- Upper Parts
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- 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
- 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
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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 -
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
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 -
On Sale
Ghost Vital 16" Upper 7.62x39
Sale: $249.00MSRP: $299.00Ghost Firearms Vital 16" Upper Chambered in 7.62x39 A2 Birdcage Flash Hider 16" 1:10 Twist 4150 Light HBar Barrel Black Nitride Carbine Length Gas System Ghost...Sale: $249.00MSRP: $299.00 -
Out of stockOn Sale
A2 Stripped Upper Receiver - Black
Sale: $99.00MSRP: $199.00A2 Stripped Upper Receiver - Black 7075-T6 Aluminum Made in the USA M4 Feed Ramps Retro A2 Style Black Hard Coat Anodized Finish Compatible with Mil-Spec AR-15 Lower Receivers A2 Carry...Sale: $99.00MSRP: $199.00 -
On Sale
A2 Stripped Upper Receiver - Raw
Sale: $89.00MSRP: $189.00A2 Stripped Upper Receiver - Raw 7075-T6 Aluminum Made in the USA M4 Feed Ramps Retro A2 Style Raw Aluminum Finish Compatible with Mil-Spec AR-15 Lower Receivers A2 Carry Handle Style...Sale: $89.00MSRP: $189.00 -
Out of stockOn Sale
Blem Nickel Teflon Complete Upper Receiver
Sale: $85.99MSRP: $179.00Blem Nickel Teflon Complete Upper Receiver Forged & machined by Cerro Forge (Key Hole) Machined From mil-spec 7075 T6 forging M4 feed ramps Proprietary electroless nickel teflon...Sale: $85.99MSRP: $179.00 -
On Sale
Ghost Vital 7.5" Upper - 7.62x39
Sale: $239.00MSRP: $299.00Ghost Vital 7.5" Upper - 7.62x39 Chambered in 7.62x39 A2 Birdcage Flash Hider 7.5" 1:10 Twist 4150 M4 Barrel Black Nitride Pistol Length Gas System Ghost Firearms 7"...Sale: $239.00MSRP: $299.00 -
On Sale
Ghost Vital 7.5" Upper 9MM
Sale: $239.00MSRP: $299.00Ghost Firearms Vital 7.5" Upper Chambered in 9x19 Para A2 Birdcage Flash Hider 7.5" 1:10 Twist 4150 Light HBar Barrel Black Nitride 1/2x36 Thread Pattern Ghost Firearms 7"...Sale: $239.00MSRP: $299.00 -
Ghost Vital 10.5" Upper 5.56 Nato With Stainless Steel Barrel with BCG & Charging Handle
$399.00GHOST FIREARMS VITAL 10.5" 5.56 UPPER RECEIVER - BLACK Chambered in 5.56x45 NATO (5.56/.223) A2 Birdcage Flash Hider (Black) 10.5" 1:7 Twist 416R M4 Stainless Steel Barrel...$399.00 -
On Sale
GHOST FIREARMS ELITE 10.5" UPPER RECEIVER - .300 BLACKOUT UPPER - FDE
Sale: $259.00MSRP: $329.00Ghost Firearms Elite 10.5" .300 - Flat Dark Earth Flat Dark Earth Cerakote Finished Chambered in .300 Blackout (7.62x35) A2 Flash Hider 10.5" 1:8 Twist 4150 Light HBar Barrel...Sale: $259.00MSRP: $329.00 -
On Sale
Always Armed 7.5" 7.62x39 Upper Receiver
Sale: $189.00MSRP: $249.00Always Armed 7.5" 7.62x39 Upper Receiver Chambered in 7.62x39 A2 Birdcage Flash Hider 7.5" 1:10 Twist 4150 M4 Barrel Black Nitride Pistol Length Gas System 7" M-Lok Free...Sale: $189.00MSRP: $249.00 -
Out of stockOn Sale
ALWAYS ARMED OCTO SERIES 16" 5.56 NATO UPPER RECEIVER - PINK CHAMPAGNE
Sale: $219.00MSRP: $319.00ALWAYS ARMED OCTO SERIES 16" 5.56 NATO UPPER RECEIVER - PINK CHAMPAGNE Made in the USA Pink Champagne Cerakote Finish Mil-Spec AR15 7075 T6 Upper Receiver with Dust Cover and Forward Assist 15" Free...Sale: $219.00MSRP: $319.00 -
On Sale
Ghost Vital 7.5" Upper 5.56 Nato
Sale: $239.00MSRP: $299.00Ghost Firearms Vital 7.5" Upper Chambered in 5.56x45 NATO (5.56/.223) A2 Birdcage Flash Hider 7.5" 1:7 Twist 4150 M4 Barrel Black Nitride Pistol Length Gas System ...Sale: $239.00MSRP: $299.00 -
On Sale
Ghost Elite 16" Upper 9MM - FDE
Sale: $269.00MSRP: $349.00Ghost Elite 16" Upper 9MM - FDE Chambered in 9x19 Para A2 Flash Hider Magpul FDE Cerakote Finish 16" 1:10 Twist 4150 Light HBar Barrel Black Nitride 1/2x36 Thread...Sale: $269.00MSRP: $349.00 -
On Sale
Ghost Vital 10.5" Upper .300 Blackout
Sale: $239.00MSRP: $299.00Ghost Vital 10.5".300 Upper Chambered in .300 Blackout (7.62x35) A2 Birdcage Flash Hider 10.5" 1:8 Twist 4150 Light HBar Barrel Black Nitride Pistol Length Gas...Sale: $239.00MSRP: $299.00 -
Out of stockOn Sale
ALWAYS ARMED 10.5" 5.56 NATO UPPER RECEIVER WITH 10" TR RAIL - MAGPUL FDE
Sale: $209.00MSRP: $299.00Always Armed 10.5" 5.56 NATO Upper Receiver - Magpul FDE Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist 10.5" 1:7 Twist 4150 Barrel with Black Nitride...Sale: $209.00MSRP: $299.00 -
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
Ghost Vital 7.5" Upper 5.56 Nato With Stainless Steel Barrel with BCG and Charging Handle
Sale: $259.00MSRP: $399.00Ghost Firearms Vital 7.5" Upper Chambered in 5.56x45 NATO (5.56/.223) A2 Birdcage Flash Hider (Black) 7.5" 1:7 Twist 416R M4 Stainless Steel Barrel Pistol Length Gas...Sale: $259.00MSRP: $399.00 -
On Sale
Ghost Firearms Elite 16" Upper 9MM - Burnt Bronze
Sale: $269.00MSRP: $349.00Ghost Firearms Elite 16" Upper 9MM- Burnt Bronze Burnt Bronze Finished Chambered in 9x19 Para 1/2x36 Thread Pattern A2 Flash Hider 16" 1:10 Twist 4150 Light HBar Barrel Black...Sale: $269.00MSRP: $349.00 -
On Sale
Ghost Vital 7.5" Upper 9MM with Stainless Steel Barrel
Sale: $239.00MSRP: $309.00Ghost Vital 7.5" Upper 9MM with Stainless Steel Barrel Chambered in 9x19 Para A2 Birdcage Flash Hider - Black Nitride Finish 7.5" 1:10 Twist 416R Stainless Steel Barrel 1/2x36 Thread...Sale: $239.00MSRP: $309.00 -
On Sale
Ghost 7.5" 5.56 Stainless Steel Upper Receiver - Black
Sale: $229.00MSRP: $319.00Ghost 7.5" 5.56 Stainless Steel Upper Receiver - Black Chambered in 5.56x45 NATO (5.56/.223) A2 Birdcage Flash Hider 7.5" 1:7 Twist 416R Stainless Steel...Sale: $229.00MSRP: $319.00 -
On Sale
Ghost Firearms Elite 16" Upper 9MM -Tungsten Gray
Sale: $269.00MSRP: $349.00Ghost Firearms Elite 16" Upper 9MM - Tungsten Gray Chambered in 9x19 Para 1/2x36 Thread Pattern A2 Flash Hider 16" 1:10 Twist 4150 Light HBar Barrel Black Nitride Ghost...Sale: $269.00MSRP: $349.00 -
On Sale
Ghost Firearms Elite 16" Upper 9MM - Blue Titanium
Sale: $269.00MSRP: $349.00Ghost Firearms Elite 16" Upper 9MM - Blue Titanium Blue Titanium Finished Chambered in 9x19 Para A2 Flash Hider 1/2x36 Thread Pattern 16" 1:10 Twist 4150 Light HBar Barrel Black...Sale: $269.00MSRP: $349.00 -
On Sale
Ghost Firearms Elite 7.5" Upper 9MM - Blue Titanium
Sale: $259.00MSRP: $329.00Ghost Firearms Elite 7.5" Upper 9MM - Blue Titanium Blue Titanium Finish Chambered in 9x19MM Para A2 Flash Hider 1/2x36 Thread Pattern 7.5" 1:10 Twist 4150 Light HBar Barrel Black Nitride...Sale: $259.00MSRP: $329.00 -
On Sale
Ghost Firearms Elite 7.5" Upper 9MM Burnt Bronze
Sale: $279.00MSRP: $329.00Ghost Firearms Elite 7.5" Upper - Burnt Bronze A2 Flash Hider 7.5" 1:10 Twist 4150 Light HBar Barrel Black Nitride 1/2x36 Thread Pattern Ghost Firearms 7" M-Lok Free Float Hand Guard...Sale: $279.00MSRP: $329.00 -
On Sale
Ghost Firearms Elite 7.5" Upper 9MM - FDE
Sale: $259.00MSRP: $329.00Ghost Firearms Elite 7.5" Upper 9MM - Flat Dark Earth Chambered in 9x19MM Para A2 Flash Hider 7.5" 1:10 Twist 4150 Light HBar Barrel Black Nitride 1/2x36 Thread Pattern Ghost...Sale: $259.00MSRP: $329.00 -
On Sale
Ghost Firearms Elite 7.5" Upper 9MM Tungsten Gray
Sale: $259.00MSRP: $329.00Ghost Firearms Elite 7.5" Upper 9MM - Tungsten Gray Chambered in 9x19MM Para A2 Flash Hider 1/2x36 Thread Pattern 7.5" 1:10 Twist 4150 Light HBar Barrel Black Nitride Ghost Firearms...Sale: $259.00MSRP: $329.00 -
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 -
On Sale
Ghost Elite 7.5" Upper 5.56 Nato - Tungsten Gray
Sale: $259.00MSRP: $329.00Ghost Firearms Elite 7.5" Upper - Tungsten Grey Chambered in 5.56x45 NATO (5.56/.223) A2 Flash Hider 7.5" 1:7 Twist 4150 M4 Barrel Black Nitride Pistol Length Gas System ...Sale: $259.00MSRP: $329.00 -
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 -
On Sale
Ghost Elite 7.5" Upper 5.56 Nato - FDE
Sale: $259.00MSRP: $329.00Ghost Firearms Elite 7.5" 5.56 Upper - FDE Magpul Flat Dark Earth Upper Receiver Chambered in 5.56x45 NATO (5.56/.223) A2 Flash Hider 7.5" 1:7 Twist 4150 M4 Barrel Black Nitride ...Sale: $259.00MSRP: $329.00 -
Out of stockOn Sale
Grid Defense 10.5" 5.56 Flash Can Upper Receiver - Pink Champagne
Sale: $329.00MSRP: $399.00Grid Defense 10.5" 5.56 Flash Can Upper Receiver Finished in Pink Champagne Cerakote 5.56 Upper Receiver Made in the USA 7075-T6 Mil-Spec Upper Receiver 10.5" 1:7 Twist 4150 M4 Profile Barrel -...Sale: $329.00MSRP: $399.00 -
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 -
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
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...