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AR 9mm Upper Receivers | AR9 Uppers From Top Brands, Like CMMG, Aero Precision, Stern Defense & More! — 84 products / 298 models

An AR 9mm Upper Receiver is a key component for shooters looking to build or customize a pistol-caliber carbine with precision and reliability. We have a huge selection of AR9 Uppers designed to fit various shooting preferences, from lightweight builds ideal for range days to heavy-duty models built for consistent performance. Each receiver is engineered for smooth cycling, reduced recoil, and compatibility with standard AR15 lowers configured for 9mm setups. Using a 9mm AR upper offers several advantages—affordable ammunition, easier handling, and simple maintenance—making it a great option for target practice or tactical training. Every upper in this range is crafted from durable materials and tested for dependable function, ensuring lasting performance and accuracy. For those who want the familiar AR platform with the efficiency and fun of a 9mm cartridge, these upper receivers deliver a smart balance of quality, control, and value. Check out all of our available AR9 Upper Receivers from top brands, like CMMG, Aero Precision, and more!image

Shop AR9 Upper Receivers Today!

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Image of FM Products FM-9 AR 9mm Forward Charging Upper Receiver w/ Micro Brake FM Products FM-9 AR 9mm Forward Charging Upper Receiver w/ Micro Brake (7) List: $399.00 (Save $20.00) $379.00 Free 2 Day Shipping
Image of FM Products FM-9 AR 9mm Rear Charging Upper Receiver, 16 inch FM Products FM-9 AR 9mm Rear Charging Upper Receiver, 16 inch (2) List: $489.00 (Save $20.00) $469.00
Image of FM Products Front Charge Mike-9 9mm Luger 5inch Upper Receiver 2 models FM Products Front Charge Mike-9 9mm Luger 5inch Upper Receiver (8) As Low As (Save $20.00) $379.00
Image of FM Products Front/Rear Charging Mike-9 9mm Luger 5inch Upper Receiver FM Products Front/Rear Charging Mike-9 9mm Luger 5inch Upper Receiver List: $299.00 (Save $20.00) $279.00 Free 2 Day Shipping
Image of Stern Defense AR-15 16.1 inch Assembled 9mm Upper Receiver w/15 inch MLOK Rail Stern Defense AR-15 16.1 inch Assembled 9mm Upper Receiver w/15 inch MLOK Rail (4) List: $544.45 (Save $10.00) $534.45
Image of Matador Arms MAT-9K AR-9 9mm 5in Roller Delayed Upper Receiver 3 models Matador Arms MAT-9K AR-9 9mm 5in Roller Delayed Upper Receiver List: $599.00 (Save $24.00) $575.00
Image of FM Products MIL-SPEC Rear Charge Mike-9 9mm Luger 5inch Upper Receiver 2 models FM Products MIL-SPEC Rear Charge Mike-9 9mm Luger 5inch Upper Receiver As Low As (Save Up to 14%) $299.99 Blazin' Deal
Image of Aero Precision EPC-9 Threaded Assembled Upper Receiver w/ LRBHO made-in-usa-flag 4 models Aero Precision EPC-9 Threaded Assembled Upper Receiver w/ LRBHO (8) As Low As (Save Up to 11%) $164.99 Best Rated
Image of R&D Precision BCG Combo 9mm Upper Receiver made-in-usa-flag R&D Precision BCG Combo 9mm Upper Receiver List: $275.98 (Save $22.00) $253.98 Free 2 Day Shipping
Image of Aero Precision EPC-9 8.3in 9mm Threaded Complete Upper Receiver with Flash Hider made-in-usa-flag 4 models Aero Precision EPC-9 8.3in 9mm Threaded Complete Upper Receiver with Flash Hider (1) As Low As (Save 10%) $459.99
Image of TRYBE Defense AR-15 Complete Upper Receiver, 16in 9mm Luger Rifle Barrel made-in-usa-flag 2 models TRYBE Defense AR-15 Complete Upper Receiver, 16in 9mm Luger Rifle Barrel List: $389.99 (Save 23%) $299.99 Blazin' Deal
Image of Aero Precision EPC-9 11in 9mm Threaded Complete Upper Receiver with Flash Hider made-in-usa-flag 4 models Aero Precision EPC-9 11in 9mm Threaded Complete Upper Receiver with Flash Hider (4) As Low As (Save 10%) $494.99
Image of FM Products FM-9 AR 9x19mm Parabellum Rear Charging Upper Receiver, 5 inch w/ Blast Diffuser 3 models FM Products FM-9 AR 9x19mm Parabellum Rear Charging Upper Receiver, 5 inch w/ Blast Diffuser (6) List: $349.00 (Save $20.00) $329.00 Free 2 Day Shipping
Image of Mean Arms Bearing Delay AR-15 9mm 14.5in Upper Receiver Assembly Mean Arms Bearing Delay AR-15 9mm 14.5in Upper Receiver Assembly List: $1,709.00 (Save 10%) $1,539.00
Image of FM Products Foxtrot Mike VFM-9 9mm Luger 7inch Upper Receiver FM Products Foxtrot Mike VFM-9 9mm Luger 7inch Upper Receiver (2) List: $309.00 (Save $20.00) $289.00
Image of Matador Arms MAT-9 AR-9 9mm 7.825in Roller Delayed Upper Receiver 3 models Matador Arms MAT-9 AR-9 9mm 7.825in Roller Delayed Upper Receiver List: $599.00 (Save $24.00) $575.00
Image of Mean Arms Bearing Delay AR-15 9mm 16in/14.5in Upper Receiver Mean Arms Bearing Delay AR-15 9mm 16in/14.5in Upper Receiver List: $1,799.00 (Save $160.00) $1,639.00
Image of R&D Precision AR-15 9mm 5 inch Upper Receiver R&D Precision AR-15 9mm 5 inch Upper Receiver List: $687.38 (Save $53.90) $633.48
Image of Moriarti OpticsPlanet Exclusive AR-9 9mm 4.5in Slick Slider Pistol Upper Assembly 2 models Moriarti OpticsPlanet Exclusive AR-9 9mm 4.5in Slick Slider Pistol Upper Assembly (1) List: $329.95 (Save 36%) $211.45 Blazin' Deal
Image of Stern Defense AR-15 6 inch Assembled 9mm Upper Receiver w/ 8 inch MLOK Rail Stern Defense AR-15 6 inch Assembled 9mm Upper Receiver w/ 8 inch MLOK Rail (5) List: $470.45 (Save $10.00) $460.45
Image of FM Products Front Charging Foxtrot Mike VFM-9 9mm Luger 5inch Upper Receiver FM Products Front Charging Foxtrot Mike VFM-9 9mm Luger 5inch Upper Receiver List: $269.00 (Save $20.00) $249.00 Free 2 Day Shipping
Image of Aero Precision EPC-9 16in 9mm Threaded Complete Upper Receiver with Flash Hider made-in-usa-flag 4 models Aero Precision EPC-9 16in 9mm Threaded Complete Upper Receiver with Flash Hider (6) As Low As (Save 10%) $529.99 Best Rated
Image of Jacob Grey Firearms 9mm Complete Upper Assembly 2 models Jacob Grey Firearms 9mm Complete Upper Assembly (6) As Low As (Save Up to 62%) $305.40 Blazin' Deal
Image of OpticsPlanet Exclusive Moriarti AR-9 4.5in 9mm Luger Upper Receiver Assembly OpticsPlanet Exclusive Moriarti AR-9 4.5in 9mm Luger Upper Receiver Assembly List: $399.95 (Save 37%) $251.97 Blazin' Deal
Image of OpticsPlanet Exclusive Moriarti AR-9 8.3 inch 9mm Luger Complete Upper Receiver OpticsPlanet Exclusive Moriarti AR-9 8.3 inch 9mm Luger Complete Upper Receiver (3) List: $399.95 (Save 49%) $202.88 Blazin' Deal
Image of FM Products Foxtrot Mike VFM-9 9mm Luger 10inch Upper Receiver FM Products Foxtrot Mike VFM-9 9mm Luger 10inch Upper Receiver List: $319.00 (Save $20.00) $299.00
Image of Mean Arms Bearing Delay AR-15 9mm 7.5in Upper Receiver Assembly Mean Arms Bearing Delay AR-15 9mm 7.5in Upper Receiver Assembly List: $1,669.00 (Save 10%) $1,499.00
Image of Aero Precision EPC-9 11in 9mm Enhanced Complete Upper Receiver with Flash Hider made-in-usa-flag 2 models Aero Precision EPC-9 11in 9mm Enhanced Complete Upper Receiver with Flash Hider As Low As (Save 10%) $479.99
Image of FM Products Foxtrot Mike Mike-9 9mm Luger Tri-Lug 7inch Upper Receiver FM Products Foxtrot Mike Mike-9 9mm Luger Tri-Lug 7inch Upper Receiver (1) List: $369.00 (Save $20.00) $349.00
Image of Matador Arms MAT-916 AR-9 9mm 16in Roller Delayed Upper Receiver 3 models Matador Arms MAT-916 AR-9 9mm 16in Roller Delayed Upper Receiver List: $610.00 (Save $11.00) $599.00
Image of ABC RIFLE COMPANY AR9 9mm Luger Pistol 4in Barrel M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle 10 models ABC RIFLE COMPANY AR9 9mm Luger Pistol 4in Barrel M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle As Low As (Save Up to 40%) $299.99 On Sale
Image of FM Products Foxtrot Mike Mike-9 9mm Luger 7inch Upper Receiver FM Products Foxtrot Mike Mike-9 9mm Luger 7inch Upper Receiver List: $349.00 (Save $30.00) $319.00
Image of Ghost Firearms Elite 9mm Luger Complete Barreled Upper Receiver 4 models Ghost Firearms Elite 9mm Luger Complete Barreled Upper Receiver (4) As Low As (Save Up to 15%) $279.99
Image of Next Level Armament Horus AR-15 9mm Luger 5 inch Upper Receiver Conversion Kit 3 models Next Level Armament Horus AR-15 9mm Luger 5 inch Upper Receiver Conversion Kit As Low As (Save Up to $20.00) $870.00
Image of ABC RIFLE COMPANY AR9 9mm Luger Pistol Billet 7in Barrel M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle 9 models ABC RIFLE COMPANY AR9 9mm Luger Pistol Billet 7in Barrel M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle (1) As Low As (Save Up to 18%) $409.99
Image of TacFire 9mm Luger AR Build Kit TacFire 9mm Luger AR Build Kit List: $399.99 (Save 20%) $319.99
Image of Mean Arms Bearing Delay AR-15 9mm 16in Upper Receiver Assembly Mean Arms Bearing Delay AR-15 9mm 16in Upper Receiver Assembly List: $1,729.00 (Save 10%) $1,559.00
Image of CMMG DISSENT 9mm, 6.5in Upper Receiver 4 models CMMG DISSENT 9mm, 6.5in Upper Receiver (1) As Low As (Save Up to 16%) $1,169.00
Image of CMMG DISSENT 9mm, 10.5in Upper Receiver 4 models CMMG DISSENT 9mm, 10.5in Upper Receiver (2) As Low As (Save Up to 16%) $1,179.00
Image of CMMG 9mm 8in Banshee Fixed Ejector Upper Group Receiver 4 models CMMG 9mm 8in Banshee Fixed Ejector Upper Group Receiver (1) As Low As (Save Up to 15%) $829.99
Image of CMMG DISSENT 9mm, 16.1in Upper Receiver 4 models CMMG DISSENT 9mm, 16.1in Upper Receiver List: $1,449.95 (Save 10%) $1,299.00
Image of Aero Precision EPC-9 16in 9mm Enhanced Complete Upper Receiver with Flash Hider made-in-usa-flag 3 models Aero Precision EPC-9 16in 9mm Enhanced Complete Upper Receiver with Flash Hider (3) As Low As (Save Up to 20%) $469.99 Final Sale
Image of CMMG Resolute Fixed Ejector 9mm 16.1in Upper Group 4 models CMMG Resolute Fixed Ejector 9mm 16.1in Upper Group As Low As (Save Up to 15%) $889.99
Image of Aero Precision EPC-9 8.3in 9mm Enhanced Complete Upper Receiver with Flash Hider made-in-usa-flag 2 models Aero Precision EPC-9 8.3in 9mm Enhanced Complete Upper Receiver with Flash Hider (4) As Low As (Save 10%) $454.99
Image of CMMG 9mm 5in Banshee Fixed Ejector Upper Group Receiver 4 models CMMG 9mm 5in Banshee Fixed Ejector Upper Group Receiver As Low As (Save Up to 15%) $829.99
Image of Angstadt Arms MDP-9 6in Complete Roller Delay Upper Receiver Assembly 2 models Angstadt Arms MDP-9 6in Complete Roller Delay Upper Receiver Assembly As Low As (Save Up to 29%) $1,349.00 Final Sale
Image of Rock River Arms A4 9MM Luger Completed Upper 4 models Rock River Arms A4 9MM Luger Completed Upper (1) As Low As (Save Up to 11%) $459.99
Image of Rock River Arms Mid-Length A4 9MM Luger Completed Upper Rock River Arms Mid-Length A4 9MM Luger Completed Upper List: $490.00 (Save $40.01) $449.99
Image of Tiger Rock AR 7.5in Pistol Length 9mm Complete Upper Tiger Rock AR 7.5in Pistol Length 9mm Complete Upper List: $569.99 (Save 26%) $419.99
Image of Angstadt Arms AR-15 Complete 9mm Upper Receiver with Flash Hider Assembly 2 models Angstadt Arms AR-15 Complete 9mm Upper Receiver with Flash Hider Assembly (3) As Low As (Save Up to 23%) $539.00
Image of Stern Defense AR-15 10 inch Assembled Upper Receiver, 8.5 in 9mm Barrel w/MLOK Rail Stern Defense AR-15 10 inch Assembled Upper Receiver, 8.5 in 9mm Barrel w/MLOK Rail (5) List: $486.45 (Save $10.00) $476.45 Best Rated
Image of ABC RIFLE COMPANY AR 9mm Luger 16in Barrel Slim M-LOK Upper Receiver w/BCG And Charging Handle ABC RIFLE COMPANY AR 9mm Luger 16in Barrel Slim M-LOK Upper Receiver w/BCG And Charging Handle List: $399.99 (Save $10.00) $389.99
Image of Aero Precision EPC-9 Enhanced Upper Receiver w/ LRBHO made-in-usa-flag 4 models Aero Precision EPC-9 Enhanced Upper Receiver w/ LRBHO (4) As Low As (Save Up to 10%) $204.99
Image of TacFire RFL Build Kit W/LPK 9mm Luger Rifle Build Kit ADC W/LPK 16" Barrel Bla SSRK9MM16LPK TacFire RFL Build Kit W/LPK 9mm Luger Rifle Build Kit ADC W/LPK 16" Barrel Bla SSRK9MM16LPK List: $499.99 (Save 24%) $379.99
Image of R&D Precision Pw9R Bufferless 9mm Upper Kit Complete R&D Precision Pw9R Bufferless 9mm Upper Kit Complete (5) List: $687.38 (Save $53.90) $633.48 Best Rated
Image of Rock River Arms Carbine A4 9MM Luger Completed Upper Rock River Arms Carbine A4 9MM Luger Completed Upper List: $470.00 (Save $35.51) $434.49
Image of Ghost Firearms Elite 9x19 Para Upper Receiver 8 models Ghost Firearms Elite 9x19 Para Upper Receiver (4) As Low As (Save Up to 25%) $260.49 Blazin' Deal
Image of TacFire Basic 7in Unassembled 9Mm Pistol Build Kit TacFire Basic 7in Unassembled 9Mm Pistol Build Kit (2) List: $399.99 (Save 13%) $346.49
Image of Angstadt Arms Angstadt Upper Receiver Pistol Calibers 9mm/40sw/10mm/.45acp Angstadt Arms Angstadt Upper Receiver Pistol Calibers 9mm/40sw/10mm/.45acp List: $244.99 (Save 16%) $205.99
Image of Guntec USA AR-15 9mm Dedicated Stripped Billet Upper Receiver 6 models Guntec USA AR-15 9mm Dedicated Stripped Billet Upper Receiver As Low As (Save Up to 29%) $89.99
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