TacFire Complete M-LOK Upper Assembly .300 Blackout 16in Type III Hard Anodized Black Large BU-300-16

Wilson Combat Ar-15 Forged Upper Receiver

The Wilson Combat M4 Mil-Spec Plus, flat-top upper receivers are precision CNC machined from 7075-T6 aluminum forgings for maximum durability and Mil-Spec Type 3 hard coat anodized in rugged black. Whether you are building a match upper or a complete... ... more

Radical Firearms Complete Upper Assembly 16in 300 AAC HBAR Contour 1/8 Twist 15in RPR M-LOK A2 Flash Hider Black CFU16-300HBAR-15RPR

Radical Firearms Complete Upper Assembly 16in 300 AAC HBAR Contour 1/8 Twist 15in RPR M-LOK A2 Flash Hider Black CFU16-300HBAR-15RPR. 62x39 is a MIL-STD upper ready to drop on any MIL-STD lower Receiver. Perfect for the novice or advanced shooter... ... more

TacFire DPMS Complete Upper Assembly Low Profile .308 Winchester 20in Type III Hard Anodized Black Large BU-308-20

TacFire DPMS Complete Upper Assembly Low Profile .308 Winchester 20in Type III Hard Anodized Black Large BU-308-20. 308 WIN barrel along with a 15" M-LOK freefloating handguard. BCG and charging handle are included in this build. Specifications for... ... more

TacFire DPMS Complete Upper Assembly Low Profile .308 Winchester 18in Type III Hard Anodized Black Large BU-308-18

TacFire DPMS Complete Upper Assembly Low Profile .308 Winchester 18in Type III Hard Anodized Black Large BU-308-18. 308 WIN barrel along with a 15" M-LOK freefloating handguard. BCG and charging handle are included in this build. Specifications for... ... more

TacFire Complete M-LOK Upper Assembly .300 Blackout 8in Type III Hard Anodized Black Large BU-300-8

TacFire Complete M-LOK Upper Assembly .300 Blackout 8in Type III Hard Anodized Black Large BU-300-8. 300 Blackout Complete M-LOK Upper Assembly then you've arrived at the absolute correct place.. Formulated by using several of the most extremely... ... more

TacFire Complete Upper Assembly 5.56 NATO 16in Type III Hard Anodized Black Large BU-556-16

TacFire Complete Upper Assembly 5.56 NATO 16in Type III Hard Anodized Black Large BU-556-16. 56 NATO barrel along with a M-LOK freefloating handguard. Mil-Spec BCG and charging handle are included in this build. Specifications for TacFire 5.56 NATO... ... more

Radical Firearms Complete Upper Assembly AR-15 .300 Blackout 10.5in Barrel 10in HG M-LOK RPR 5/8x24 A2 FH Black CFU10.5-300HBAR-10RPR

Radical Firearms Complete Upper Assembly AR-15 .300 Blackout 10.5in Barrel 10in HG M-LOK RPR 5/8x24 A2 FH Black CFU10.5-300HBAR-10RPR. 5in HBAR profile 300BLK is a complete MIL-STD upper ready to drop on any MIL-STD lower Receiver. Perfect for the... ... more

Radical Firearms Complete Upper Assembly AR-15 .300 Blackout 10.5in Barrel 9in HG M-LOK MHR 5/8x24 A2 FH Black CFU10.5-300HBAR-9MHR

Radical Firearms Complete Upper Assembly AR-15 .300 Blackout 10.5in Barrel 9in HG M-LOK MHR 5/8x24 A2 FH Black CFU10.5-300HBAR-9MHR. 5in HBAR profile 300BLK is a complete MIL-STD upper ready to drop on any MIL-STD lower Receiver. Perfect for the novice... ... more

TacFire Complete Upper Assembly 5.56 NATO 5in Type III Hard Anodized Black Large BU-556-5

TacFire Complete Upper Assembly 5.56 NATO 5in Type III Hard Anodized Black Large BU-556-5. 56 NATO barrel along with a M-LOK freefloating handguard. Mil-Spec BCG and charging handle are included in this build. Specifications for TacFire 5.56 NATO... ... more

TacFire Complete Upper Assembly 5.56 NATO 7in Type III Hard Anodized Black Large BU-556-7

TacFire Complete Upper Assembly 5.56 NATO 7in Type III Hard Anodized Black Large BU-556-7. 56 NATO barrel along with a M-LOK freefloating handguard. Mil-Spec BCG and charging handle are included in this build. Specifications for TacFire 5.56 NATO... ... more

Grey Ghost Precision Complete Upper .300 Blackout 25.75in 16 inch 1-10 5/8x24 Heavy Pistol M-LOK Anodized Finish Black GGP-300-16-UC

Grey Ghost Precision Complete Upper .300 Blackout 25.75in 16 inch 1-10 5/8x24 Heavy Pistol M-LOK Anodized Finish Black GGP-300-16-UC. 300 AAC Blackout has become a favorite among hunters due to its lack of recoil and relatively short overall length... ... more

Aero Precision Complete Upper Receiver M4E1-T .300 16in Blackout Barrel 12in M-LOK ATLAS S-ONE Handguard Flat Dark Earth Cerakote Anodized Black

Aero Precision Complete Upper Receiver M4E1-T .300 16in Blackout Barrel 12in M-LOK ATLAS S-ONE Handguard Flat Dark Earth Cerakote Anodized Black. 300 Blackout w/ ATLAS S-ONE Handguard Complete Upper Receiver. Aero Precision built these AR15 Upper... ... more

Tiger Rock Complete Upper Receiver .300 Blackout AR 16in Pistol Length 1/8 Twist w/ 15in M-LOK Handguard Black Large UB300-15ML

Tiger Rock Complete Upper Receiver .300 Blackout AR 16in Pistol Length 1/8 Twist w/ 15in M-LOK Handguard Black Large UB300-15ML. 300 Blackout Complete Upper Receiver then you have come to the right spot.. Established using several of the very most... ... more

TacFire DPMS Complete Upper Assembly Low Profile .308 Winchester 16in Type III Hard Anodized Black Large BU-308-16

TacFire DPMS Complete Upper Assembly Low Profile .308 Winchester 16in Type III Hard Anodized Black Large BU-308-16. 308 WIN barrel along with a 15" M-LOK freefloating handguard. BCG and charging handle are included in this build. Specifications for... ... more

TRYBE Defense AR-15 Semi-Complete Upper M-LOK w/o BCG or Charging Handle 16in .300 Blackout 4140 CMV Black SCUPPER16300

TRYBE Defense AR-15 Semi-Complete Upper M-LOK w/o BCG or Charging Handle 16in .300 Blackout 4140 CMV Black SCUPPER16300. 300 Blackout has everything you need. Featuring an ultra-durable high-performance 4140 CMV steel barrel with 5R rifling and a 1:8"... ... more

Aero Precision Complete Upper Receiver M4E1-T 10in .300 Blackout Barrel 9in M-LOK ATLAS S-ONE Handguard Anodized Black APAR700302M4

Aero Precision Complete Upper Receiver M4E1-T 10in .300 Blackout Barrel 9in M-LOK ATLAS S-ONE Handguard Anodized Black APAR700302M4. The R-ONE handguards are designed with size and weight in mind while still providing plenty of real-estate to... ... more

Radical Firearms Complete Upper Assembly 16in 300 AAC HBAR Contour 1/8 Twist 12in MHR M-LOK A2 Flash Hider Black CFU16-300HBAR-12MHR

Radical Firearms Complete Upper Assembly 16in 300 AAC HBAR Contour 1/8 Twist 12in MHR M-LOK A2 Flash Hider Black CFU16-300HBAR-12MHR. 62x39 is a MIL-STD upper ready to drop on any MIL-STD lower Receiver. Perfect for the novice or advanced shooter... ... more

Aero Precision Complete Upper Receiver M4E1-T .300 16in Blackout Barrel 15in M-LOK ATLAS S-ONE Handguard Anodized Black APAR700305M14

Aero Precision Complete Upper Receiver M4E1-T .300 16in Blackout Barrel 15in M-LOK ATLAS S-ONE Handguard Anodized Black APAR700305M14. 300 Blackout w/ ATLAS S-ONE Handguard Complete Upper Receiver. Aero Precision built these AR15 Upper Receivers with... ... more

TacFire Complete Upper Assembly .45 ACP 16in Type III Hard Anodized Black Large BU-45ACP-16

TacFire Complete Upper Assembly .45 ACP 16in Type III Hard Anodized Black Large BU-45ACP-16. 45 ACP Complete Upper Assembly. Formulated by using several of the most extremely sturdy and dependable resources around these AR15 Upper Receivers from... ... more

Tiger Rock Complete Upper Receiver .300 Blackout AR 7.5in Pistol Length 1-7 Twist w/ M-LOK Handguard Black Large UB300-P7.5-4ML

Tiger Rock Complete Upper Receiver .300 Blackout AR 7.5in Pistol Length 1-7 Twist w/ M-LOK Handguard Black Large UB300-P7.5-4ML. 300 Blackout Complete Upper Receiver then you have come to the right spot.. Established using several of the very most... ... more

Radical Firearms Complete Upper Assembly 16in 6.5 Grendel 416R Medium Contour 1/9 Twist 15in RPR M-LOK Pepper Pot Brake Black CFU16-6.5-SS-MED-15RPR

Radical Firearms Complete Upper Assembly 16in 6.5 Grendel 416R Medium Contour 1/9 Twist 15in RPR M-LOK Pepper Pot Brake Black CFU16-6.5-SS-MED-15RPR. 5 Grendel chamber. An upper like this one is hard to find in the AR15 market. The 6.5 Grendel chamber... ... more

Radical Firearms Complete Upper Assembly 16in 6.5 Grendel 416R Medium Contour 1/9 Twist 15in MHR M-LOK Pepper Pot Brake Black CFU16-6.5-SS-MED-15MHR

Radical Firearms Complete Upper Assembly 16in 6.5 Grendel 416R Medium Contour 1/9 Twist 15in MHR M-LOK Pepper Pot Brake Black CFU16-6.5-SS-MED-15MHR. 5 Grendel chamber. An upper like this one is hard to find in the AR15 market. The 6.5 Grendel chamber... ... more

Jacob Grey Firearms .300 Blackout 16in Complete Upper Assembly AR-15 Black 300BO16CUA

Jacob Grey Firearms .300 Blackout 16in Complete Upper Assembly AR-15 Black 300BO16CUA. If youre not already a fan of this cartridge take it to the range and you will be. You can have an AR that not only performs in CQC but is an effective long-range... ... more

Jacob Grey Firearms Ultralight Complete Upper Assembly .300 AAC Blackout 16in Black 300BO16ULCUA

Jacob Grey Firearms Ultralight Complete Upper Assembly .300 AAC Blackout 16in Black 300BO16ULCUA. This AR-15 complete upper assembly is built around the 7075-T6 billet upper receiver specifically machined and cut in areas where excess material was... ... more

Aero Precision Complete Upper Receiver M4E1 .300 Blackout Barrel EM-12 HG No BCG/Charging Handle Gen 2 Anodized Black 16in APAR600231M14

Aero Precision Complete Upper Receiver M4E1 .300 Blackout Barrel EM-12 HG No BCG/Charging Handle Gen 2 Anodized Black 16in APAR600231M14. 300 BLK Complete Uppers are equipped with CMV medium profile barrels. Along with excellent fit and finish these... ... more

Aero Precision Complete Upper Receiver M4E1 .300 Blackout Barrel EQ-12 HG No BCG/Charging Handle Gen 2 Anodized Black 16in APAR600231Q14

Aero Precision Complete Upper Receiver M4E1 .300 Blackout Barrel EQ-12 HG No BCG/Charging Handle Gen 2 Anodized Black 16in APAR600231Q14. 300 BLK Complete Uppers are equipped with CMV medium profile barrels. Along with excellent fit and finish these... ... more

TRYBE Defense AR-15 16in Complete Upper M-LOK .300 BLK 4140 CMV UPPER16300

TRYBE Defense AR-15 16in Complete Upper M-LOK .300 BLK 4140 CMV UPPER16300. 300 Blackout. Formed from 4140 Chrome Moly Vanadium (CMV) these AR15 Upper Receivers by TRYBE Defense boast a 5R rifling that holds zero and guides your bullets with ease. This... ... more

TacFire Complete Upper Assembly 9mm 16in Black Large BU-9MM-16

TacFire Complete Upper Assembly 9mm 16in Black Large BU-9MM-16. . Formulated using some of the most heavy duty and long lasting substances around these AR15 Upper Receivers through TacFire offers you a product that will give you years of dependability.... ... more

Aero Precision AR15 No FA Complete Upper 8in .300 Blackout BRL 7in M-LOK ATLAS S-ONE HG Anodized Black APAR610501M1

Aero Precision AR15 No FA Complete Upper 8in .300 Blackout BRL 7in M-LOK ATLAS S-ONE HG Anodized Black APAR610501M1. 300 Blackout barrel & 7" M-LOK freefloat handguard. Aero Precision's dedication to quality began with hand machining their products in... ... more

Aero Precision Complete Upper Receiver M4E1 .300 Blackout Barrel EM-15 HG No BCG/Charging Handle Gen 2 Anodized Black 16in APAR600251M14

Aero Precision Complete Upper Receiver M4E1 .300 Blackout Barrel EM-15 HG No BCG/Charging Handle Gen 2 Anodized Black 16in APAR600251M14. 300 BLK Complete Uppers are equipped with CMV medium profile barrels. Along with excellent fit and finish these... ... more

Aero Precision M4E1 Threaded .300 Blackout Complete Upper Receiver 16in 1-7 Twist A2 Flash Hider 5/8x24 Thread ATLAS R-ONE Handguard Black Anodized

Aero Precision M4E1 Threaded .300 Blackout Complete Upper Receiver 16in 1-7 Twist A2 Flash Hider 5/8x24 Thread ATLAS R-ONE Handguard Black Anodized. 300 Blackout w/ ATLAS S-ONE Handguard Complete Upper Receiver. Aero Precision built these AR15 Upper... ... more

Aagil Arms Complete AR-15 .350 Legend Upper Assembly 16in Barrel Length Carbine 1-16 Twist w/ 15in M-Lok Anodized Black Medium AA-C16350C16K15

Aagil Arms Complete AR-15 .350 Legend Upper Assembly 16in Barrel Length Carbine 1-16 Twist w/ 15in M-Lok Anodized Black Medium AA-C16350C16K15. 350 Legend. 16" Barrel. Carbine Gas System. 15" M-Lok Handguard. Charging Handle and Canvas Gun Sleeve... ... more

Radical Firearms Complete Upper Assembly 16in 300 AAC HBAR Contour 1/8 Twist 10in RPR M-LOK A2 Flash Hider Black CFU16-300HBAR-10RPR

Radical Firearms Complete Upper Assembly 16in 300 AAC HBAR Contour 1/8 Twist 10in RPR M-LOK A2 Flash Hider Black CFU16-300HBAR-10RPR. 62x39 is a MIL-STD upper ready to drop on any MIL-STD lower Receiver. Perfect for the novice or advanced shooter... ... more

Radical Firearms Complete Upper Assembly 16in 300 AAC HBAR Contour 1/8 Twist 9in MHR M-LOK A2 Flash Hider Black CFU16-300HBAR-9MHR

Radical Firearms Complete Upper Assembly 16in 300 AAC HBAR Contour 1/8 Twist 9in MHR M-LOK A2 Flash Hider Black CFU16-300HBAR-9MHR. 62x39 is a MIL-STD upper ready to drop on any MIL-STD lower Receiver. Perfect for the novice or advanced shooter wanting... ... more

TacFire Complete Upper Assembly .45 ACP 7in Type III Hard Anodized Black Large BU-45ACP-7

TacFire Complete Upper Assembly .45 ACP 7in Type III Hard Anodized Black Large BU-45ACP-7. 45 ACP Complete Upper Assembly. Formulated by using several of the most extremely sturdy and dependable resources around these AR15 Upper Receivers from TacFire... ... more

Aero Precision Complete Upper Receiver M4E1 .300 Blackout Barrel EQ-15 HG No BCG/Charging Handle Gen 2 Anodized Black 16in APAR600251Q14

Aero Precision Complete Upper Receiver M4E1 .300 Blackout Barrel EQ-15 HG No BCG/Charging Handle Gen 2 Anodized Black 16in APAR600251Q14. 300 BLK Complete Uppers are equipped with CMV medium profile barrels. Along with excellent fit and finish these... ... more

Aero Precision Complete Upper Receiver M4E1-T .300 16in Blackout Barrel 12in M-LOK ATLAS S-ONE Handguard Anodized Black APAR700304M14

Aero Precision Complete Upper Receiver M4E1-T .300 16in Blackout Barrel 12in M-LOK ATLAS S-ONE Handguard Anodized Black APAR700304M14. 300 Blackout w/ ATLAS S-ONE Handguard Complete Upper Receiver. Aero Precision built these AR15 Upper Receivers with... ... more