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Heckler & Koch, MR556 A4 Upper Receiver, 223 Remington/556NATO, 16.5" Barrel, Threaded 1/2X28, M-LOK Handguard, Anodized Finish, Black, Fits AR-15 Lower Receivers, Includes Bolt Carrier Group, Charging Handle, Buffer Weight and Buffer Spring, 642230270213, HKK-51000384, RTG Parts

HK MR556 A4 16.5" M-LOK UPPER RECEIVER GROUP

$2,179.00
Heckler & Koch, MR762 A4 Upper Receiver, 308 Winchester/762NATO, 13" Barrel, Threaded 5/8X24, M-LOK Handguard, Anodized Finish, Black, Adjustable Gas Block, Includes Bolt Carrier Group, Buffer Weight, and Buffer Spring, 642230272545, HKK-51001919, RTG Parts

HK MR762 A4 13" M-LOK UPPER RECEIVER

$2,599.99 $3,049.00
Picture of LBE UNLIMITED AR15 CARBINE LENGTH GAS TUBE W/ PIN

LBE UNLIMITED AR15 CARBINE LENGTH GAS TUBE W/ PIN

$11.99
Picture of Q HONEY BADGER 300 BLACKOUT 7" LIGHT PROFILE BARREL, GREY

Q HONEY BADGER 300 BLACKOUT 7" LIGHT PROFILE BARREL, GR...

$499.00
Picture of Q HONEY BADGER MLOK 12" HANDGUARD KIT , FITS HONEY BADGER & AR UPPER RECEIVERS, GRAY

Q HONEY BADGER MLOK 12" HANDGUARD KIT , FITS HONEY BADG...

$289.95
Picture of Q HONEY BADGER MLOK 6" HANDGUARD KIT , FITS HONEY BADGER & AR UPPER RECEIVERS, GRAY

Q HONEY BADGER MLOK 6" HANDGUARD KIT , FITS HONEY BADGE...

$299.00
Picture of Q HONEY BADGER MLOK 6" HANDGUARD, FITS HONEY BADGER & AR UPPER RECEIVERS, GRAY

Q HONEY BADGER MLOK 6" HANDGUARD, FITS HONEY BADGER & A...

$225.00
Picture of RADIAN RAPTOR CHARGING HANDLE AR15, BLK

RADIAN RAPTOR CHARGING HANDLE AR15, BLK

$99.95
Picture of RADIAN RAPTOR CHARGING HANDLE AR15, FDE

RADIAN RAPTOR CHARGING HANDLE AR15, FDE

$99.95
Radian Weapons, Raptor-LT, Ambidextrous, Light Weight, 7075 Aluminum, Polymer Over-mold Handles, 5.56MM, For AR15/M16, Black Finish, 817093021160, R0148, RAD-R0148, RTG Parts

RADIAN RAPTOR LT CHARGING HANDLE AR15, BLK

$74.95
Picture of RADIAN RAPTOR LT CHARGING HANDLE AR15, FDE

RADIAN RAPTOR LT CHARGING HANDLE AR15, FDE

$79.95
Picture of RADIAN RAPTOR SD CHARGING HANDLE AR15, BLK

RADIAN RAPTOR SD CHARGING HANDLE AR15, BLK

$134.95
Picture of RADIAN RAPTOR SD CHARGING HANDLE AR15, FDE

RADIAN RAPTOR SD CHARGING HANDLE AR15, FDE

$129.95
Picture of SAMSON RAPID PRECISION MOUNT WITH 2 INCH OFFSET, 30MM

SAMSON RAPID PRECISION MOUNT WITH 2 INCH OFFSET, 30MM

$151.41 $159.38
Picture of TRIJICON RMR QD MOUNT, COWITNESS, MIDWEST INDUSTRIES

TRIJICON RMR QD MOUNT, COWITNESS, MIDWEST INDUSTRIES

$99.95
Picture of TRIJICON RMR QD MOUNT, LOW, MIDWEST INDUSTRIES

TRIJICON RMR QD MOUNT, LOW, MIDWEST INDUSTRIES

$94.95
Picture of TRIJICON RMR QD MOUNT, LOWER 1/3, MIDWEST INDUSTRIES

TRIJICON RMR QD MOUNT, LOWER 1/3, MIDWEST INDUSTRIES

$99.95
Picture of MAGPUL ENHANCED EJECTION PORT COVER, BLACK

MAGPUL ENHANCED EJECTION PORT COVER, BLACK

$14.20
Picture of MAGPUL ENHANCED EJECTION PORT COVER, FDE

MAGPUL ENHANCED EJECTION PORT COVER, FDE

$14.20
Picture of MAGPUL ENHANCED EJECTION PORT COVER, ODG

MAGPUL ENHANCED EJECTION PORT COVER, ODG

$14.20
Picture of MAGPUL MBUS PRO OFFSET SIGHT FRONT

MAGPUL MBUS PRO OFFSET SIGHT FRONT

$94.95
Picture of MAGPUL MBUS PRO OFFSET SIGHT REAR

MAGPUL MBUS PRO OFFSET SIGHT REAR

$113.95
Picture of CHRISTENSEN ARMS ONE PIECE CANTILEVER MOUNT, 30MM, ZERO MOA, BLACK

CHRISTENSEN ARMS ONE PIECE CANTILEVER MOUNT, 30MM, ZERO...

$129.99 $159.99
Picture of BUSHMASTER 16 INCH 5.56 NATO BARREL, 1:8 TWIST, 2 DIMPLE

BUSHMASTER 16 INCH 5.56 NATO BARREL, 1:8 TWIST, 2 DIMPL...

$99.99 $129.99
Picture of BUSHMASTER XM15 E2S QUICK RESPONSE CARBINE 16 INCH 5.56 NATO BARREL, 1:8 TWIST

BUSHMASTER XM15 E2S QUICK RESPONSE CARBINE 16 INCH 5.56...

$119.95 $260.95
Picture of COLT LE6920CK COMPLETE UPPER 556NATO 16.1 INCH W/ BOLT GROUP

COLT LE6920CK COMPLETE UPPER 556NATO 16.1 INCH W/ BOLT ...

$795.00
Picture of COLT LE6920CK-NHG UPPER FOR FREE FLOAT HANDGUARD, 556NATO 16.1 INCH W/ FA BOLT CARRIER GROUP

COLT LE6920CK-NHG UPPER FOR FREE FLOAT HANDGUARD, 556NA...

$699.99
Colt's Manufacturing, LE6920EPRII PRO, Upper Receiver, 5.56 NATO, 16.1" Barrel, Fits AR-15/M4 Lower Receivers, Matte Finish, Black, 098289035639, COLT-LE6920-EPRII-PRO-CK, RTG Parts

COLT LE6920-EPRII-PRO 16" COMPLETE UPPER RECEIVER GROUP

$859.00 $1,019.00
Picture of COLT LE6933-EPRII 11.5" COMPLETE UPPER RECEIVER GROUP

COLT LE6933-EPRII 11.5" COMPLETE UPPER RECEIVER GROUP

$789.00 $919.00
FightLite MCR Dual-Feed Upper Receiver Assembly 12.5" MLOK, Mission Configurable Rifle, 5.56 NATO, Quick-Change Barrel, Threaded 1/2X28, Fits AR-15 Lower Receiver, M-LOK Handguard, Adjustable Sight Set, Manganese Phosphate Finish, Black, Includes Buffer, Spacer, Bolt Catch, Adapter and Compensator, Includes (100)-M27 Links, 859714006347, ARR-MCR-060MS, RTG Parts

FIGHTLITE MCR DUAL-FEED UPPER RECEIVER ASSEMBLY 5.56 12...

$5,899.99 $6,399.99
FightLite MCR Dual-Feed Upper Receiver Assembly 16.25" MLOK, Mission Configurable Rifle, 5.56 NATO, Quick-Change Barrel, Threaded 1/2X28, Fits AR-15 Lower Receiver, M-LOK Handguard, Adjustable Sight Set, Manganese Phosphate Finish, Black, Includes Buffer, Spacer, Bolt Catch, Adapter and Compensator, Includes (100)-M27 Links, 859714006354, ARR-MCR-060M, RTG Parts

FIGHTLITE MCR DUAL-FEED UPPER RECEIVER ASSEMBLY 5.56 16...

$5,899.99 $6,399.99
Colt LE6921CK Complete Upper with Bolt Group, 5.56 NATO .223, 14.5 Inch M4 Contour Barrel, Colt's Manufacturing 098289035325, COLT-LE6921CK, RTG Parts

COLT LE6921CK COMPLETE UPPER 556NATO 14.5 INCH W/ BOLT ...

$749.99 $849.00
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