Primary Weapon Systems Upper Receivers

We track 54 Primary Weapon Systems upper receivers across 30+ retailers, starting at $578 — 15 of the 24 shown are in stock right now. Prices update automatically, so what you see is today’s price rather than a figure someone typed into an article months ago.

Prices checked Oct 11, 2026 · refreshed daily

• Primary Weapons Systems MK116 Mod 2-M 16.10" Upper .223 Wylde 1:8 M-LOK Rail Mid-Length, Black$1299.95
• Mk114 Mod 1-M 223 Wylde Complete Upper Receiver - Mk114 Mod 1-M 223 Wylde 14.5" Bbl Complete Upper Thread Only$1049.95
• Primary Weapons Systems MK116 Mod 1-M 16.10" Upper .223 Wylde 1:8 M-LOK Rail Mid-Length, Black$1049.95
• Primary Weapons Systems MK111 MOD 1-M Upper Receiver 7.62x39 11.85in Pistol Length 1-10 Twist PWS Triad 30 3-Setting Adjustable Gas System Black$1129.95
• Ar-15 Mk1 Mod 1-M Upper Receiver Assembly 223 Wylde M-Lok - Mk111 Mod 1-M 223 Wylde Upper Receiver W/11.85" Bbl$1049.95
• Ar-15 Mk1 Mod 1-M Upper Receiver Assembly 223 Wylde M-Lok - Mk116 Mod 1-M 223 Wylde Upper Receiver W/16.1" Bbl$1029.49
• Primary Weapons Systems MK111 MOD 2-M Upper Receiver 7.62x39 20.75in 1-10 Twist Black$1329.95
• Ar-15 Mk1 Mod 1-M Upper Receiver Assembly 300 Blackout M-Lok - Mk109 Mod 1-M 300blk Upper Receiver W/9.75" Bbl$1049.95
• Primary Weapon Systems MK114 MOD 2-M 6mm ARC Complete Upper Receiver - 14.5" - FRC Comp$1399.95
• Mk111 Mod 2-M 223 Wylde Complete Upper Receiver - Mk111 Mod 2-M 223 Wylde 11.85" Bbl Complete Upper$1299.95
• Primary Weapons Systems MK116 Mod 2-M .223 Wylde/5.56x45mm 16.10", Black$1949.95
• Primary Weapons Systems MK114 Mod 2-M 14.50" Upper .223 Wylde 1:8 M-LOK Rail Mid-Length, Black$1299.95
• Brownells Exclusive Mk1 Alpha Lt 223 Wylde Complete Upper - Mk1 Alpha Lt 223 Wylde 14.5"bbl 11.5" Mlok Hdgd Kodiak Brown$1260.99
• Mk116 Mod 2-M 223 Wylde Complete Upper Receiver - Mk116 Mod 2-M 223 Wylde 16.1" Bbl Complete Upper W/Fsc 556$1299.95
• Mk114 Mod 2-M 223 Wylde Complete Upper Receiver - Mk114 Mod 2-M 223 Wylde 14.5" Bbl Complete Upper W/Frc 556$1299.95
• Primary Weapons Systems MK114 Mod 1-M 14.50" Upper .223 Wylde 1:8 M-LOK Mid-Length with Charging Handle, Black - Precision Accuracy - M114UA01-2F-NC$1029.49
• Primary Weapons Mk116 Pro Complete Upper Receiver 16.1" Black$577.99
• Primary Weapons Systems MK116 .223 Wylde Upper with 16.1" Barrel, Black - 182M116UA0B$1299.95
• Mk109 Mod 2-M 300 Aac Blackout Complete Upper Receiver - Mk109 Mod 2-M 300 Aac Blackout 9.75" Bbl Complete Upper$1299.95
• Mk107 Mod 1-M 223 Wylde Complete Upper Receiver - Mk107 Mod 1-M 223 Wylde 7.75" Bbl Complete Upper Receiver$1029.49
• Mk109 Mod 2-M 300 Aac Blackout Complete Upper Receiver - Mk109 Mod 2-M 300 Aac Blackout 9.75" Bbl Complete Upper$1299.95
• Mk114 Mod 2-M 223 Wylde Complete Upper Receiver - Mk114 Mod 2-M 223 Wylde 14.5" Bbl Complete Upper Thread Only$974.96
• PWS MK116 MOD 2-M RIFLE 338ARC 16.1 LS FRC COMP$1999.95
• AR 308 MK2 MOD 1-M UPPER RECEIVER 6.5 CREEDMOOR M-...$1937.65

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