img 13 gauge upper receiver

Spikes Tactical Upper 5.56 16in M4 LE w/13.2in BAR2 Rail STU5025-R3S

Spikes Tactical Upper 5.56 16in M4 LE w/13.2in BAR2 Rail STU5025-R3S. 56 M4 Carbine 16in Forged Upper Receiver right into your current build to create a powerful and reliable firearm for sport shooting self-defense or tactical needs. These AR15... more

Geissele Automatics Ar-15 Mk16 Super Modular Rails M-Lok - Mk16 Sm Rail 13.5" M-Lok For Ar-15 Ddc

The Super Modular Rail 13.5" (SMR) MK16 M-LOK, NSN# 1005-01-672-4794 (13.5"), has been adopted by USASOC for the URG-I program (Upper Receiver Group Improved). The Geissele Super Modular Rail MK16 offers unmatched performance for the most demanding... more

LENCO Trim Tab Kit 15037-101

Trim Tab Kit 12 X 12 12V STD Performance MFG# LEN-15037-101 Performance design w/reinforced hinge and polished finish. Boats 13 - 40 . Incl: (2) 12-gauge SS blades (2) actuators (2) wiring harnesses (2) upper mnt brackets (2) lower mnt brackets. more

Geissele Automatics Ar-15 Mk16 Super Modular Rails M-Lok - Mk16 Sm Rail 9.3" M-Lok For Ar-15 Ddc

The Super Modular Rail 13.5" (SMR) MK16 M-LOK, NSN# 1005-01-672-4794 (13.5"), has been adopted by USASOC for the URG-I program (Upper Receiver Group Improved). The Geissele Super Modular Rail MK16 offers unmatched performance for the most demanding... more

Geissele Automatics Ar-15 Mk16 Super Modular Rails M-Lok - Mk16 Sm Rail 9.3" M-Lok For Ar-15 Blk

The Super Modular Rail 13.5" (SMR) MK16 M-LOK, NSN# 1005-01-672-4794 (13.5"), has been adopted by USASOC for the URG-I program (Upper Receiver Group Improved). The Geissele Super Modular Rail MK16 offers unmatched performance for the most demanding... more

Spikes Tactical Upper 5.56 16in Midlength LE w/13.2in BAR2 Rail STU5035-R3S

Spikes Tactical Upper 5.56 16in Midlength LE w/13.2in BAR2 Rail STU5035-R3S. 56 LE Midlength 16in Forged Upper Receiver that's inspected and ready to function right out of the box. Spikes Tactical crafted these AR15 Upper Receivers from 7075 T6... more

V Seven M4 Stripped Upper Type Iii Hardcoat Anodized M4-URS

V Seven M4 Stripped Upper Type Iii Hardcoat Anodized M4-URS. . These AR15 Upper Receivers through the expert product professionals at V Seven are made using dependable and reliable materials as a way to supply you with a product which will be... more

OpticsPlanet Exclusive Daniel Defense Custom A4 Upper Receiver Group 14.5 in GV MID Daniel Defense Extended Flash Suppressor MFR 13.5 Mil Spec

OpticsPlanet Exclusive Daniel Defense Custom A4 Upper Receiver Group 14.5 in GV MID Daniel Defense Extended Flash Suppressor MFR 13.5 Mil Spec. 5in barrel. This Daniel Defense upper is an OpticsPlanet Exclusive which means you won't find this exact... more

Geissele Automatics Ar-15 Mk16 Super Modular Rails M-Lok - Mk16 Sm Rail 10.5" M-Lok For Ar-15 Blk

The Super Modular Rail 13.5" (SMR) MK16 M-LOK, NSN# 1005-01-672-4794 (13.5"), has been adopted by USASOC for the URG-I program (Upper Receiver Group Improved). The Geissele Super Modular Rail MK16 offers unmatched performance for the most demanding... more

Geissele Automatics Ar-15 Mk16 Super Modular Rails M-Lok - Mk16 Sm Rail 15" M-Lok For Ar-15 Blk

The Super Modular Rail 13.5" (SMR) MK16 M-LOK, NSN# 1005-01-672-4794 (13.5"), has been adopted by USASOC for the URG-I program (Upper Receiver Group Improved). The Geissele Super Modular Rail MK16 offers unmatched performance for the most demanding... more

Geissele Automatics Ar-15 Mk16 Super Modular Rails M-Lok - Mk16 Sm Rail 15" M-Lok For Ar-15 Ddc

The Super Modular Rail 13.5" (SMR) MK16 M-LOK, NSN# 1005-01-672-4794 (13.5"), has been adopted by USASOC for the URG-I program (Upper Receiver Group Improved). The Geissele Super Modular Rail MK16 offers unmatched performance for the most demanding... more

Geissele Automatics Ar-15 Mk16 Super Modular Rails M-Lok - Mk16 Sm Rail 10.5" M-Lok For Ar-15 Ddc

The Super Modular Rail 13.5" (SMR) MK16 M-LOK, NSN# 1005-01-672-4794 (13.5"), has been adopted by USASOC for the URG-I program (Upper Receiver Group Improved). The Geissele Super Modular Rail MK16 offers unmatched performance for the most demanding... more

Spikes Tactical Upper 5.56 16in Midlength LE w/13.2in SAR3 Rail STU5035-CQ3F

Spikes Tactical Upper 5.56 16in Midlength LE w/13.2in SAR3 Rail STU5035-CQ3F. 56 LE Midlength 16in Forged Upper Receiver that's inspected and ready to function right out of the box. Spikes Tactical crafted these AR15 Upper Receivers from 7075 T6... more

Spikes Tactical Upper 5.56 16in M4 LE w/13.2in M-LOK Rail STU5025-CM3F

Spikes Tactical Upper 5.56 16in M4 LE w/13.2in M-LOK Rail STU5025-CM3F. 56 M4 Carbine 16in Forged Upper Receiver right into your current build to create a powerful and reliable firearm for sport shooting self-defense or tactical needs. These AR15... more

Spikes Tactical Upper 5.56 16in M4 LE w/13.2in SAR3 Rail STU5025-CQ3F

Spikes Tactical Upper 5.56 16in M4 LE w/13.2in SAR3 Rail STU5025-CQ3F. 56 M4 Carbine 16in Forged Upper Receiver right into your current build to create a powerful and reliable firearm for sport shooting self-defense or tactical needs. These AR15... more

Spikes Tactical Upper 5.56 14.5in 16in OAL Midlength Lightweight LE w/13.2in SAR3 Rail w/ Vortex FH STU5050-CQ3V

Spikes Tactical Upper 5.56 14.5in 16in OAL Midlength Lightweight LE w/13.2in SAR3 Rail w/ Vortex FH STU5050-CQ3V. 56 Midlength Lightweight Forged 14.5in Upper Receiver. These AR15 Upper Receivers brought to you by Spikes Tactical are crated from... more

Spikes Tactical Upper 5.56 18in LW SPR w/13.2in SAR3 Rail STU5260-CQ3R

Spikes Tactical Upper 5.56 18in LW SPR w/13.2in SAR3 Rail STU5260-CQ3R. 56 Special Purpose 18in Forged Upper Receiver then you've come to the absolute right location.. These AR15 Upper Receivers through the expert product professionals at Spikes... more

Wilson Combat Upper Complete Forged 300 HAM'R Ranger Mid Length 16in Round Q-Comp 1-13 Twist Black Black TR-UF300HRAM16RQ13B

Wilson Combat Upper Complete Forged 300 HAM'R Ranger Mid Length 16in Round Q-Comp 1-13 Twist Black Black TR-UF300HRAM16RQ13B. Complete High Performance AR Upper Receiver Units use the same top tier components skilled gunsmith assembly and final... more

Spikes Tactical Upper 5.56 14.5in 16in OAL Midlength Lightweight LE w/13.2in BAR2 Rail & Dynacomp STU5050-R3D

Spikes Tactical Upper 5.56 14.5in 16in OAL Midlength Lightweight LE w/13.2in BAR2 Rail & Dynacomp STU5050-R3D. 56 Midlength Lightweight Forged 14.5in Upper Receiver. These AR15 Upper Receivers brought to you by Spikes Tactical are crated from 7075... more

Spikes Tactical Upper 5.56 16in Midlength LE w/13.2in M-LOK Rail STU5035-CM3F

Spikes Tactical Upper 5.56 16in Midlength LE w/13.2in M-LOK Rail STU5035-CM3F. 56 LE Midlength 16in Forged Upper Receiver that's inspected and ready to function right out of the box. Spikes Tactical crafted these AR15 Upper Receivers from 7075 T6... more

FM Products FM-15 .223 Wylde 13.9in Mid Length Gen 2 Upper Reciever 1-8 Twist Rate 1/2x28 TPI Black FM15U-G2-13.9

FM Products FM-15 .223 Wylde 13.9in Mid Length Gen 2 Upper Reciever 1-8 Twist Rate 1/2x28 TPI Black FM15U-G2-13.9. Specifications for FM Products MIKE-15 Buffer-less .223 Wylde Gen 2 Upper Receiver: Manufacturer: FM Products Cartridge: .223 Wylde... more

Aero Precision Complete Upper Receiver M4E1 Threaded PRO 5.56 13.7in Barrel Gov Profile Mid-Length Gas System 1-7 Twist 1/2 x 28 Thread ATLAS R-ONE

Aero Precision Complete Upper Receiver M4E1 Threaded PRO 5.56 13.7in Barrel Gov Profile Mid-Length Gas System 1-7 Twist 1/2 x 28 Thread ATLAS R-ONE. 56 Cold Hammer Forged Barrel that is paired with our PRO 5.56 BCG. Included ATLAS R-ONE Handguard... more

Foxtrot Mike Products Mike 15 Gen 2 5.56 Upper Receivers - Gen 2 Complete Upper 13.9" Intermediate G

Foxtrot Mike is well known for its innovative 9MM PCC, as it has been a go to for competitive PCC shooters and consumers alike, for more than 6 years. The Foxtrot Mike Products AR-15 Gen 2 Upper Receiver is a premium quality upper receiver designed... more

Aero Precision Complete Upper Receiver M4E1-T RM12.7 5.56x45mm NATO 13.9in Government Mid Length 1 in 7 1/2 x 28 12.7in A2 Flash Hider Cerakote FDE

Aero Precision Complete Upper Receiver M4E1-T RM12.7 5.56x45mm NATO 13.9in Government Mid Length 1 in 7 1/2 x 28 12.7in A2 Flash Hider Cerakote FDE. The R-ONE handguards are designed with size and weight in mind while still providing plenty of... more

Aero Precision Complete Upper Receiver M4E1-T RM12.7 5.56x45mm NATO 13.9in Government Mid Length 1 in 7 1/2 x 28 12.7in A2 Flash Hider Anodized Black

Aero Precision Complete Upper Receiver M4E1-T RM12.7 5.56x45mm NATO 13.9in Government Mid Length 1 in 7 1/2 x 28 12.7in A2 Flash Hider Anodized Black. The R-ONE handguards are designed with size and weight in mind while still providing plenty of... more

Aero Precision Complete Upper Receiver M4E1-T SM12.7 5.56x45mm NATO 13.9in Government Mid Length 1 in 7 1/2 x 28 12.7in A2 Flash Hider Anodized Black

Aero Precision Complete Upper Receiver M4E1-T SM12.7 5.56x45mm NATO 13.9in Government Mid Length 1 in 7 1/2 x 28 12.7in A2 Flash Hider Anodized Black. The S-ONE line of handguards are designed with size and weight in mind providing the perfect... more

Aero Precision Complete Upper Receiver M4E1-E 5.56x45mm NATO 13.9in Government Mid Length 1 in 7 1/2 x 28 12.7in A2 Flash Hider Anodized Black

Aero Precision Complete Upper Receiver M4E1-E 5.56x45mm NATO 13.9in Government Mid Length 1 in 7 1/2 x 28 12.7in A2 Flash Hider Anodized Black. The S-ONE line of handguards are designed with size and weight in mind providing the perfect addition to... more

Aero Precision Complete Upper Receiver M4E1-E 5.56x45mm NATO 13.9in Government Mid Length 1 in 7 1/2 x 28 12.7in A2 Flash Hider Cerakote FDE

Aero Precision Complete Upper Receiver M4E1-E 5.56x45mm NATO 13.9in Government Mid Length 1 in 7 1/2 x 28 12.7in A2 Flash Hider Cerakote FDE. The S-ONE line of handguards are designed with size and weight in mind providing the perfect addition to... more

Aero Precision Complete Upper Receiver M4E1-T SM12.7 5.56x45mm NATO 13.9in Government Mid Length 1 in 7 1/2 x 28 12.7in A2 Flash Hider Cerakote FDE

Aero Precision Complete Upper Receiver M4E1-T SM12.7 5.56x45mm NATO 13.9in Government Mid Length 1 in 7 1/2 x 28 12.7in A2 Flash Hider Cerakote FDE. The S-ONE line of handguards are designed with size and weight in mind providing the perfect... more

Sons of Liberty Gun Works East India Starter Kit Combat Grade FSB 13.7in w/ Front Sight Base Black EIC-13.7-FSB-556

Sons of Liberty Gun Works East India Starter Kit Combat Grade FSB 13.7in w/ Front Sight Base Black EIC-13.7-FSB-556. Established using some of the most extremely durable and dependable substances available these AR15 Upper Receivers via Sons of... more

Sons of Liberty Gun Works East India Starter Kit Combat Grade 13.7in 5.56mm Black EIC-13.7-556

Sons of Liberty Gun Works East India Starter Kit Combat Grade 13.7in 5.56mm Black EIC-13.7-556. 56 Combat Grade Starter Kit. These AR15 Upper Receivers through the expert product professionals at Sons of Liberty Gun Works are made using long lasting... more

Sons of Liberty Gun Works Half Complete Upper Receiver M4-89 .300 AAC Blackout 13.9in 13in Combat Barrel M89 Rail A2 Flash Hider No BCG or CH Black

Sons of Liberty Gun Works Half Complete Upper Receiver M4-89 .300 AAC Blackout 13.9in 13in Combat Barrel M89 Rail A2 Flash Hider No BCG or CH Black. 300 AAC Blackout Half Complete Upper Receiver was created in order to function as the ideally suited... more

Sons of Liberty Gun Works Half Complete Upper Receiver M4-89 5.56mm 14.5in 13.75in Combat Barrel M89 Rail P/W NOX9 Flash Hider No BCG or CH Black

Sons of Liberty Gun Works Half Complete Upper Receiver M4-89 5.56mm 14.5in 13.75in Combat Barrel M89 Rail P/W NOX9 Flash Hider No BCG or CH Black. 56 Half Complete Upper Receiver then you have turned up at the right location.. Formulated using some... more

Sons of Liberty Gun Works Half Complete Upper Receiver M4-89 5.56mm 13.7in 13in Combat Barrel M89 Rail P/W NOX9 Flash Hider No BCG or CH Black

Sons of Liberty Gun Works Half Complete Upper Receiver M4-89 5.56mm 13.7in 13in Combat Barrel M89 Rail P/W NOX9 Flash Hider No BCG or CH Black. 56 Half Complete Upper Receiver then you have turned up at the right location.. Formulated using some of... more

Sons of Liberty Gun Works Half Complete Upper Receiver M4-EXO3 5.56mm 13.7in 13in Combat Barrel EXO3 Rail P/W NOX9 Flash Hider No BCG or CH Black

Sons of Liberty Gun Works Half Complete Upper Receiver M4-EXO3 5.56mm 13.7in 13in Combat Barrel EXO3 Rail P/W NOX9 Flash Hider No BCG or CH Black. 56 Half Complete Upper Receiver then you have found yourself in the absolute right location..... more

Brownells Brn-180s(TM) Gen2 13.9/14.5 223/5.56 Complete Upper Receiver Assy - Brn-180 Gen 2 13.9" 22

Designed in conjunction with PWS & FM Products, the Brownells BRN-180S Complete Upper Receiver is the newest iteration of the BRN-180 Upper Receiver, which was inspired by the Armalite AR-180 of the 1960s. The BRN-180S shares a large chunk of... more

Brownells Brn-180s(TM) Gen2 13.9/14.5 223/5.56 Complete Upper Receiver Assy - Brn-180s Gen 2 14.5" 2

Designed in conjunction with PWS & FM Products, the Brownells BRN-180S Complete Upper Receiver is the newest iteration of the BRN-180 Upper Receiver, which was inspired by the Armalite AR-180 of the 1960s. The BRN-180S shares a large chunk of... more

Brownells Brn-15 Upper Receivers 5.56mm Nato - Brn-15 13.7" Upper Receiver Assembly .750" Gas Block

Manufactured in the US with the highest quality components, the BRN-15 Upper Receiver Groups are great starts for your next build. Pick your preferred bolt carrier group and charging handle to complete. The BRN-15 Upper Receiver Groups feature a... more