Upper Receiver Parts & Kits for Sale | AR-15 Upper Receiver Assembly — Mid State Firearms - Page 6

Showing 241–288 of 408 results

-32%

Cheap ass .625 set screw ar15 barrel dimpling jig v2
Original price was: $36.45.Current price is: $24.84. View Product
-25%

Cheap ass .750 Steel set screw ar15 barrel dimpling jig v2

Rated 4.88 out of 5 based on 17 customer ratings
(17)
Original price was: $26.45.Current price is: $19.84. View Product
-32%

Cheap ass .875 set screw ar15 barrel dimpling jig v2
Original price was: $36.45.Current price is: $24.84. View Product
-32%

Cheap ass .936 set screw ar15 barrel dimpling jig v2
Original price was: $36.45.Current price is: $24.84. View Product
-56%

Competition Muzzle Brake, Black, .308 5/8-24 Threads
Thread Pitch: 5/8x24
Caliber: .308

Rated 2 out of 5 based on 1 customer rating
(1)
Original price was: $79.37.Current price is: $35.00. View Product
-33%

Competition Muzzle Brake, Black, 5/8-32 Threads for 450 & 458
Thread Pitch: 5/8x32
Caliber: .450 Bushmaster, .458 Socom
Original price was: $79.37.Current price is: $52.91. View Product
-56%

Competition Muzzle Brake, Stainless, 1/2×28
Thread Pitch: 1/2x28

Rated 5.00 out of 5 based on 3 customer ratings
(3)
Original price was: $79.37.Current price is: $35.00. View Product
-56%

Competiton Muzzle Brake, Black, .223 1/2-28 Threads
Thread Pitch: 1/2x28
Original price was: $79.37.Current price is: $35.00. View Product
-29%

CUSTOM Engraved Ar15 Ejection Port / Dust Cover

Rated 5.00 out of 5 based on 1 customer rating
(1)
Original price was: $46.31.Current price is: $33.06. View Product
-39%

DLC m16 / Ar15 Bolt Carrier Group, blem
Original price was: $229.00.Current price is: $139.00. View Product
-32%

End cap for handguard, .750 barrel dia

Rated 5 out of 5 based on 2 customer ratings
(2)
Original price was: $13.21.Current price is: $9.00. View Product
-17%

Firing Pin Retaining Pin / Retainer , Ar15 / M16

Rated 4.50 out of 5 based on 2 customer ratings
(2)
Original price was: $1.79.Current price is: $1.49. View Product
-40%

Flat Dark Earth m16 FDE pvd ar15 bolt carrier group BCG
Original price was: $248.80.Current price is: $149.80. View Product
Gas Block / Gas Tube Assembly with Gas Block and Gas Tube

Rated 5.00 out of 5 based on 3 customer ratings
(3)
$29.99 View Product
-50%

Left Hand Nickel Boron BCG M16 / Ar15 Bolt Carrier Group

Rated 5.00 out of 5 based on 6 customer ratings
(6)
Original price was: $299.00.Current price is: $149.00. View Product
-38%

Lightning Bolt custom engraved Ar15 M16 Bolt Carrier Group BCG

Rated 5.00 out of 5 based on 3 customer ratings
(3)
Original price was: $194.98.Current price is: $119.99. View Product
M16 Bolt Carrier Group – Billet Extractor, 5.56 – Color PVD – blem
$149.95 View Product
-40%

Mil Spec Ar15 Stripped Upper Receiver – a3/a4 Flat Top

Rated 5.00 out of 5 based on 3 customer ratings
(3)
Original price was: $100.01.Current price is: $59.99. View Product
-13%

MSF 10.5″ 7.62x39mm Pistol Upper Assembly
Style: Pistol
Caliber: 7.62x39

Rated 5.00 out of 5 based on 2 customer ratings
(2)
Original price was: $374.00.Current price is: $324.00. View Product
-14%

MSF 10.5” Pistol 300 Blackout Upper Assembly
Barrel Size: 10.5"
Caliber: 300 BLK

Rated 5.00 out of 5 based on 2 customer ratings
(2)
Original price was: $349.00.Current price is: $299.00. View Product
-14%

MSF 10.5” Pistol 5.56/.223 Upper Assembly
Caliber: 5.56/.223
Style: Pistol

Rated 5.00 out of 5 based on 2 customer ratings
(2)
Original price was: $349.00.Current price is: $299.00. View Product
-14%

MSF 10” 9mm Pistol Upper Assembly
Style: Pistol
Barrel Size: 10"
Original price was: $349.00.Current price is: $299.00. View Product
-14%

MSF 11.5” 5.56/.223 Pistol Upper Assembly
Barrel Size: 11.5"
Caliber: 5.56/.223
Original price was: $349.00.Current price is: $299.00. View Product
-14%

MSF 12.5” Pistol 5.56/.223 Ar15 Upper Assembly
Caliber: 5.56/.223
Barrel Size: 12.5"

Rated 4.75 out of 5 based on 8 customer ratings
(8)
Original price was: $349.00.Current price is: $299.00. View Product
-14%

MSF 12.5” Pistol 5.56/.223 Ar15 Upper Assembly 1:7 mid length
Barrel Size: 12.5"
Caliber: 5.56/.223
Original price was: $349.00.Current price is: $299.00. View Product
-14%

MSF 13.9” 5.56/.223 Ar15 Pistol Upper Assembly
Barrel Size: 14.5"
Caliber: 5.56/.223
Original price was: $349.00.Current price is: $299.00. View Product
-14%

MSF 14.5” 5.56/.223 Pistol Upper Assembly
Caliber: 5.56/.223
Barrel Size: 14.5"

Rated 5.00 out of 5 based on 3 customer ratings
(3)
Original price was: $349.00.Current price is: $299.00. View Product
-24%

MSF 13.9” Pin/weld 5.56/.223 Ar15 Rifle Upper assembly
Barrel Size: 13.9"
Style: Rifle

Rated 4.64 out of 5 based on 14 customer ratings
(14)
Original price was: $499.00.Current price is: $379.00. View Product
-24%

MSF 13.9” Pin/weld 223 Wylde 1:7 Ar15 Rifle Upper assembly
Barrel Size: 13.9"
Caliber: 5.56/.223
Original price was: $499.00.Current price is: $379.00. View Product
-24%

MSF 14.5” Pin/weld 5.56/.223 Ar15 Rifle Upper assembly
Barrel Size: 14.5"
Style: Rifle

Rated 4.60 out of 5 based on 10 customer ratings
(10)
Original price was: $499.00.Current price is: $379.00. View Product
-16%

MSF 16″ 5.56 Nato 1/7 4150cmv Black Nitride barrel
Caliber: 5.56/.223
Barrel Size: 16"
Original price was: $165.00.Current price is: $139.00. View Product
-13%

MSF 16” 6.5 Grendel Upper Receiver Assembly
Caliber: 6.5 Grendel
Barrel Size: 16"
Original price was: $374.00.Current price is: $324.00. View Product
-13%

MSF 16” .350 Legend Upper Receiver Assembly
Barrel Size: 16"
Caliber: .350 Legend

Rated 5.00 out of 5 based on 2 customer ratings
(2)
Original price was: $399.00.Current price is: $349.00. View Product
-13%

MSF 16” .450 Bushmaster Upper Receiver Assembly
Barrel Size: 16"
Style: Rifle
Original price was: $399.00.Current price is: $349.00. View Product
-13%

MSF 16” .458 Socom Upper Receiver Assembly
Caliber: .458 Socom
Style: Rifle

Rated 5.00 out of 5 based on 2 customer ratings
(2)
Original price was: $399.00.Current price is: $349.00. View Product
-14%

MSF 16” (Pistol Gas) 300 Blackout Upper Assembly
Style: Rifle
Caliber: 300 BLK

Rated 5.00 out of 5 based on 2 customer ratings
(2)
Original price was: $349.00.Current price is: $299.00. View Product
-14%

MSF 16” 5.56/.223 Upper Assembly
Caliber: 5.56/.223
Style: Rifle

Rated 4.38 out of 5 based on 8 customer ratings
(8)
Original price was: $349.00.Current price is: $299.00. View Product
-14%

MSF 16” 9mm Upper Assembly
Style: Rifle
Caliber: 9mm
Original price was: $349.00.Current price is: $299.00. View Product
-13%

MSF 16″ 7.62x39mm Upper Receiver Assembly
Style: Rifle
Barrel Size: 16"

Rated 5.00 out of 5 based on 2 customer ratings
(2)
Original price was: $374.00.Current price is: $324.00. View Product
-11%

MSF 18” .450 Bushmaster Upper Receiver Assembly
Caliber: .450 Bushmaster
Barrel Size: 18"

Rated 5.00 out of 5 based on 1 customer rating
(1)
Original price was: $439.00.Current price is: $389.00. View Product
-8%

MSF 18” 5.56/.223 Upper Receiver Assembly
Caliber: 5.56/.223
Style: Rifle
Original price was: $379.00.Current price is: $349.00. View Product
-12%

MSF 18” 6.5 Grendel Upper Receiver Assembly
Style: Rifle
Barrel Size: 18"
Original price was: $429.00.Current price is: $379.00. View Product
-33%

MSF 20” 5.56/.223 Wylde Ar15 Upper Assembly with 15″ gen3 MLok – blem
Style: Rifle
Model Style: Ar-15

Rated 5.00 out of 5 based on 12 customer ratings
(12)
Original price was: $449.00.Current price is: $299.00. View Product
-13%

MSF 20” SS Fluted (Rifle Gas) 5.56/.223 Ar15 Upper Assembly
Caliber: 5.56/.223
Style: Rifle

Rated 5.00 out of 5 based on 4 customer ratings
(4)
Original price was: $449.00.Current price is: $389.00. View Product
-14%

MSF 3” 9mm Pistol Upper Assembly
Caliber: 9mm
Barrel Size: 3"
Original price was: $349.00.Current price is: $299.00. View Product
-13%

MSF 7.5″ Pistol 7.62x39mm Upper Assembly
Caliber: 7.62x39
Style: Pistol
Original price was: $374.00.Current price is: $324.00. View Product
-14%

MSF 7.5” Pistol 300 Blackout Upper Assembly
Barrel Size: 7.5"
Caliber: 300 BLK
Original price was: $349.00.Current price is: $299.00. View Product
-14%

MSF 7.5” Pistol 5.56/.223 Upper Assembly
Style: Pistol
Barrel Size: 7.5"
Original price was: $349.00.Current price is: $299.00. View Product

Showing 241–288 of 408 results