Showing 1–12 of 169 results

Adams Arms AR-15 P1 Gas Piston Upper Receiver Assembly 5.56x45mm NATO 16” Barrel

$619.99

Product Information

Cartridge 5.56x45mm NATO
Finish QPQ Black
Material Aluminum
Weight 4.375 Pound
Barrel Length 16 Inches
Twist 1:7 Inches
Threads 1/2"-28
Barrel Contour Government
Sights No
Barrel Finish QPQ Black
Chrome Lined No
Gas Block Diameter 0.75 Inches
Gas System Length Carbine, Short Stroke Piston Operated
M4 Feed Ramps Yes
Upper Receiver Type AR-15 Flat-Top Gas Piston
Barrel Material 4150 Chrome Moly Vanadium Steel
Handguard Magpul MOE Mid-length
Bolt Carrier Assembly Included Yes
Muzzle Device A2
Mil-Spec or Commercial Mil-Spec
Compatible With
AR-15

Delivery Information

Shipping Weight 5.530 Pounds

Adams Arms AR-15 P2 Adjustable Gas Piston Pistol Upper Receiver Assembly 5.56x45mm NATO 11.5” Barrel

$879.99

Product Information

Cartridge 5.56x45mm NATO
Material Aluminum
Barrel Length 11.5 Inches
Twist 1:7 Inches
Threads 1/2"-28
Sights No
Gas System Length Carbine
M4 Feed Ramps Yes
Upper Receiver Type A3 Flat-Top
Barrel Material 4150 Chrome Moly Vanadium Steel
Handguard Free Float M-LOK
Mil-Spec or Commercial Mil-Spec
Country of Origin United States of America
Compatible With
AR-15

Delivery Information

Shipping Weight 4.835 Pounds

Adams Arms AR-15 P2 Adjustable Gas Piston Pistol Upper Receiver Assembly 5.56x45mm NATO 7.5” Barr

$879.99

Product Information

Cartridge 5.56x45mm NATO
Material Aluminum
Barrel Length 7.5 Inches
Twist 1:7 Inches
Threads 1/2"-28
Sights No
Gas System Length Pistol
M4 Feed Ramps Yes
Upper Receiver Type A3 Flat-Top
Handguard Free Float M-LOK
Mil-Spec or Commercial Mil-Spec
Country of Origin United States of America
Compatible With
AR-15

Delivery Information

Shipping Weight 4.565 Pounds

Alexander Arms Upper Receiver Build Kit AR-15 50 Beowulf 16.5″ Barrel 49/64″-20 Thread Black

$824.99

Product Information

Cartridge 50 Beowulf
Finish Black
Material Aluminum
Barrel Length 16.5 Inches
Twist 1:20 Inches
Threads 49/64"-20
Barrel Contour Standard
Sights No
Barrel Finish Black
Chrome Lined No
Gas Block Diameter 0.875 Inches
Gas System Length Mid-Length
M4 Feed Ramps No
Upper Receiver Type A4 Flat-Top
Barrel Material 4140 Chrome Moly Steel
Bolt Carrier Assembly Included Yes
Muzzle Device Thread Protector
Mil-Spec or Commercial Commercial
Country of Origin United States of America
Compatible With
AR-15

Delivery Information

Shipping Weight 4.715 Pounds

Alexander Arms Upper Receiver Build Kit AR-15 6.5 Grendel 20″ Stainless Steel Barrel 5/8″-24 Thread Black

$761.99

Product Information

Cartridge 6.5 Grendel
Finish Black
Material Aluminum
Barrel Length 20 Inches
Twist 1:8 Inches
Threads 5/8"-24
Barrel Contour Standard
Sights No
Barrel Finish Stainless
Chrome Lined No
Gas Block Diameter 0.875 Inches
Gas System Length Rifle
M4 Feed Ramps No
Upper Receiver Type A4 Flat-Top
Barrel Material Stainless Steel
Bolt Carrier Assembly Included Yes
Mil-Spec or Commercial Mil-Spec
Country of Origin United States of America
Compatible With
AR-15

Delivery Information

Shipping Weight 4.985 Pounds

Alexander Arms Upper Receiver Build Kit AR-15 Pistol 50 Beowulf 12″ Barrel 49/64″-20 Thread Black

$824.99

Product Information

Cartridge 50 Beowulf
Finish Black
Material Aluminum
Barrel Length 12 Inches
Twist 1:20 Inches
Threads 49/64"-20
Barrel Contour Standard
Sights No
Barrel Finish Black
Chrome Lined No
Gas Block Diameter 0.875 Inches
Gas System Length Carbine
M4 Feed Ramps No
Upper Receiver Type A4 Flat-Top
Barrel Material 4140 Chrome Moly Steel
Bolt Carrier Assembly Included Yes
Muzzle Device Thread Protector
Mil-Spec or Commercial Commercial
Country of Origin United States of America
Compatible With
AR-15

Delivery Information

Shipping Weight 4.145 Pounds

Angstadt Arms AR-15 Suppressor Ready Pistol Upper Receiver Assembly 9mm Luger

$765.00

Product Information

Cartridge 9mm Luger
Color Black
Finish Anodized
Material Aluminum
Weight 2.6 Pound
Barrel Length 4.5 Inches
Twist 1:10 Inches
Threads 1/2"-36
Barrel Contour Lightweight
Barrel Finish Black
Chrome Lined No
Upper Receiver Type Slick-Side Flat-Top
Barrel Material Chrome Moly Steel
Handguard 4" Ultra Light M-Lok
Bolt Carrier Assembly Included Yes
Muzzle Device 3-Lug Muzzle Brake/Blastwave Shield
Country of Origin United States of America
Compatible With
AR-15

Delivery Information

Shipping Weight 3.105 Pounds

AR-STONER AR-15 A3 Pistol Upper Receiver Assembly 223 Remington (Wylde) 7.5″ Barrel 7″ Ultralight M-LOK Handguard

$299.99

Product Information

Cartridge 223 Wylde
Color Black
Finish Anodized
Material Aluminum
Weight 3.8 Pound
Barrel Length 7.5 Inches
Twist 1:7 Inches
Threads 1/2"-28
Barrel Contour M4
Barrel Finish Parkerized
Chrome Lined No
Gas Block Diameter 0.75 Inches
Gas System Length Pistol
M4 Feed Ramps Yes
Upper Receiver Type A3 Flat-Top
Barrel Material 4150 Chrome Moly Vanadium Steel
Handguard 7" Ultralight M-LOK
Bolt Carrier Assembly Included Yes
Muzzle Device A2 Flash Hider
Country of Origin United States of America
Compatible With
AR-15

Delivery Information

Shipping Weight 3.800 Pounds

AR-STONER AR-15 A3 Pistol Upper Receiver Assembly 300 AAC Blackout 7.5″ Barrel 7″ M-LOK Ultralight Handguard

$299.99

Product Information

Cartridge 300 AAC Blackout (7.62x35mm)
Finish Matte Black
Material Aluminum
Weight 3.375 Pound
Barrel Length 7.5 Inches
Twist 1:8 Inches
Threads 5/8"-24
Barrel Contour Heavy
Sights No
Barrel Finish Parkerized
Chrome Lined No
Gas Block Diameter 0.75 Inches
Gas System Length Pistol
M4 Feed Ramps Yes
Upper Receiver Type A3 Flat-Top
Barrel Material Steel
Handguard M-LOK
Bolt Carrier Assembly Included Yes
Muzzle Device Flash Hider
Mil-Spec or Commercial Mil-Spec
Country of Origin United States of America
Compatible With
AR-15

Delivery Information

Shipping Weight 3.985 Pounds

AR-STONER AR-15 A3 Pistol Upper Receiver Assembly 7.62x39mm 10.5″ Barrel 10″ Ultralight M-LOK Handguard

$329.99

Product Information

Cartridge 7.62x39mm
Color Black
Finish Anodized
Material Aluminum
Weight 4 Pound
Barrel Length 10.5 Inches
Twist 1:10 Inches
Threads 5/8"-24
Barrel Contour Heavy
Barrel Finish Parkerized
Chrome Lined No
Gas Block Diameter 0.75 Inches
Gas System Length Carbine
M4 Feed Ramps Yes
Upper Receiver Type A3 Flat-Top
Barrel Material 4150 Chrome Moly Vanadium Steel
Handguard 10" Ultralight M-LOK
Bolt Carrier Assembly Included Yes
Muzzle Device A2 Flash Hider
Country of Origin United States of America
Compatible With
AR-15

Delivery Information

Shipping Weight 4.715 Pounds

AR-STONER AR-15 A3 Upper Receiver Assembly 12.7x42mm 16″ Barrel with 15″ M-LOK Ultralight Handguard

$349.99

Product Information

Cartridge 12.7x42mm
Color Black
Finish Anodized
Material Aluminum
Weight 5.4 Pound
Barrel Length 16 Inches
Twist 1:20 Inches
Threads 49/64"-20
Barrel Contour Heavy
Barrel Finish Parkerized
Chrome Lined No
Gas Block Diameter 0.936 Inches
Gas System Length Carbine
M4 Feed Ramps No
Upper Receiver Type A3 Flat-Top
Barrel Material 4150 Chrome Moly Vanadium Steel
Handguard 15" M-Lok Ultralight
Bolt Carrier Assembly Included Yes
Muzzle Device LS2 Spiral Flash Hider
Country of Origin United States of America
Compatible With
AR-15

Delivery Information

Shipping Weight 5.910 Pounds

AR-STONER AR-15 A3 Upper Receiver Assembly 350 Legend 16″ Barrel with 15″ M-LOK Ultralight Handguard

$379.99

Product Information

Color Black
Finish Anodized
Material Aluminum
Weight 3.9 Pound
Barrel Length 16 Inches
Twist 1:16 Inches
Threads 5/8"-24
Barrel Contour M4
Barrel Finish Parkerized
Chrome Lined No
Gas Block Diameter 0.75 Inches
Gas System Length Carbine
M4 Feed Ramps Yes
Upper Receiver Type A3 Flat-Top
Barrel Material 4150 Chrome Moly Vanadium Steel
Handguard 15" M-Lok Ultralight
Bolt Carrier Assembly Included Yes
Muzzle Device Flash Hider
Country of Origin United States of America

Delivery Information

Shipping Weight 5.060 Pounds