Upper Receiver Parts & Kits for Sale | AR-15 Upper Receiver Assembly — Mid State Firearms - Page 8

Showing 337–384 of 408 results

-38% Out of stock

4 pack of 5” 9mm ar15 ar9 barrels
Caliber: 9mm

Rated 5.00 out of 5 based on 2 customer ratings
(2)
Original price was: $399.00.Current price is: $249.00. View Product
-17% Out of stock

5″ 9mm Ar15 Pistol Barrel, 5/8-24 Nitride
Caliber: 9mm
Thread Pitch: 5/8x24

Rated 4.00 out of 5 based on 4 customer ratings
(4)
Original price was: $119.00.Current price is: $99.00. View Product
-18% Out of stock

Ar15 Left Handed Builder Bundle – Receiver and Nitride BCG Combo

Rated 5.00 out of 5 based on 1 customer rating
(1)
Original price was: $279.99.Current price is: $229.99. View Product
-11% Out of stock

Ar15 Left Handed Builder Bundle – Upper Receiver and Nickel BCG Combo

Rated 5.00 out of 5 based on 7 customer ratings
(7)
Original price was: $279.99.Current price is: $249.99. View Product
-21% Out of stock

Blem 5″ Ar9 Threaded Ar15 Pistol MLok Upper
Rail Length: 4"
Caliber: 9mm

Rated 4.33 out of 5 based on 3 customer ratings
(3)
Original price was: $249.00.Current price is: $197.00. View Product
-32% Out of stock

Combo Deal: Microbest M16 Full Chrome Bolt Carrier Group – MPI , HPT , OCKS, Sprinco + BCMGUNFIGHTER Charging Handle

Rated 5.00 out of 5 based on 1 customer rating
(1)
Original price was: $249.00.Current price is: $169.00. View Product
-19% Out of stock

Combo deal! Criterion 14.5” Core Chrome lined Ar15 barrel and Microbest Full Chrome M16 BCG
Original price was: $529.00.Current price is: $429.00. View Product
-19% Out of stock

Combo deal! Criterion 16” Core Chrome lined Ar15 barrel and Microbest Full Chrome M16 BCG
Original price was: $529.00.Current price is: $429.00. View Product
-39% Out of stock

Microbest m16 Phosphate / CL HPT / MPI Bolt Carrier Group BCG, Sprinco, OCKS, oring
Caliber: 5.56/.223, 300 BLK

Rated 4.00 out of 5 based on 4 customer ratings
(4)
Original price was: $179.00.Current price is: $109.00. View Product
-39% Out of stock

Microbest m16 Phosphate / CL HPT / MPI Bolt Carrier Group BCG, Sprinco, oring
Caliber: 5.56/.223, 300 BLK

Rated 5.00 out of 5 based on 6 customer ratings
(6)
Original price was: $179.00.Current price is: $109.00. View Product
Out of stock

Microbest MPI Phosphate Bolt Face Assembly c158
$89.99 View Product
Out of stock

Oilslick chameleon rainbow pvd standard charging handle with black latch
$89.00 View Product
-30% Out of stock

Radian Raptor Ambidextrous Ar15 / M16 Charging handle – Blem
Original price was: $99.00.Current price is: $69.00. View Product
-8% Out of stock

Radian RAPTOR SD-SL AMBIDEXTROUS Ar-15 CHARGING HANDLE
Original price was: $124.95.Current price is: $115.00. View Product
-64% Out of stock

*blem* Blue Stars American Flag PVD Ar15 Bolt Carrier Group BCG
Original price was: $329.42.Current price is: $119.50. View Product
-27% Out of stock

1/2-36 A2 Flash Hider – 1/2-36 for some 9mm, 6.8, etc Threads
Thread Pitch: 1/2x36
Original price was: $29.11.Current price is: $21.16. View Product
-46% Out of stock

10.5″ .300 AAC Blackout 1:8 Ar15 Barrel
Barrel Size: 10.5"
Caliber: 300 BLK
Original price was: $236.82.Current price is: $129.00. View Product
-37% Out of stock

10″ Gen3 Slim Free Float Handguard / Rail
Rail Length: 10"

Rated 5 out of 5 based on 3 customer ratings
(3)
Original price was: $157.44.Current price is: $99.00. View Product
Out of stock

14.7 CHF Oilslick Ar15 Barrel 5.56 Nato 1:7
Caliber: 5.56/.223
Barrel Size: 14.5"
$329.42 View Product
-29% Out of stock

15″ Gen1 Free Float Quad Rail
Rail Length: 15"

Rated 5.00 out of 5 based on 1 customer rating
(1)
Original price was: $138.90.Current price is: $99.00. View Product
-49% Out of stock

16″ .223 Wylde 1:8 Mid-Length 4150 Lightweight Pencil Barrel
Caliber: 5.56/.223
Barrel Size: 16"
Original price was: $289.74.Current price is: $149.00. View Product
-48% Out of stock

16″ .223 Wylde 1:8 Stainless Spiral Fluted Ar15 Barrel
Barrel Size: 16"
Caliber: 5.56/.223

Rated 5.00 out of 5 based on 4 customer ratings
(4)
Original price was: $382.34.Current price is: $197.12. View Product
-50% Out of stock

16″ 223 Wylde 1:8 416r Stainless m4 Threaded AR15 Barrel
Caliber: 5.56/.223
Barrel Size: 16"
Original price was: $316.20.Current price is: $157.44. View Product
-42% Out of stock

16″ 5.56 NATO 1:8 4150 m4 Ar15 Barrel
Barrel Size: 16"
Caliber: 5.56/.223

Rated 5 out of 5 based on 2 customer ratings
(2)
Original price was: $223.58.Current price is: $129.00. View Product
-41% Out of stock

16″ 6.5 Grendel 4150 m4 Ar15 Barrel
Barrel Size: 16"
Caliber: 5.56/.223
Original price was: $304.22.Current price is: $179.20. View Product
-47% Out of stock

16″ 7.62 x 39 Melonite Ar15 Barrel

Rated 5.00 out of 5 based on 2 customer ratings
(2)
Original price was: $197.12.Current price is: $104.52. View Product
-46% Out of stock

16″ 9mm 1:10 4150 Ar15 Lightweight Contour Barrel
Barrel Size: 16"
Caliber: 9mm
Original price was: $236.82.Current price is: $129.00. View Product
-50% Out of stock

16″ Cold Hammer Forged CHF 5.56 Nato 1:7 MidLength Ar15 Barrel
Caliber: 5.56/.223
Barrel Size: 16"

Rated 1 out of 5 based on 1 customer rating
(1)
Original price was: $395.58.Current price is: $196.24. View Product
-20% Out of stock

16″ Gold 223 Wylde 1:8 Ar15 TiN / Titanium Nitride HBAR barrel
Caliber: 5.56/.223
Barrel Size: 16"
Original price was: $249.00.Current price is: $199.00. View Product
-33% Out of stock

16″ Mid Length PVD Oilslick 556 Nato 1:8 416r SS Ar15 Barrel
Caliber: 5.56/.223
Barrel Size: 16"
Original price was: $395.58.Current price is: $263.28. View Product
-50% Out of stock

16″ Pencil PVD Oilslick 5.56 / 223 Wylde 1:8 Mid 416r SS Ar15 Barrel
Barrel Size: 16"
Caliber: 5.56/.223
Original price was: $395.58.Current price is: $199.74. View Product
-35% Out of stock

16″ Stainless 300 AAC Blackout 1:8 Socom Ar15 Threaded Barrel
Barrel Size: 16"
Caliber: 300 BLK
Original price was: $263.28.Current price is: $170.66. View Product
-50% Out of stock

16″ Stainless 7.62 x 39 1:10 Ar15 Hbar Carbine Threaded Barrel
Barrel Size: 16"
Caliber: 7.62x39
Original price was: $263.28.Current price is: $130.98. View Product
-33% Out of stock

16″ Stainless Mid-Length 5.56 NATO 1:7 Ar15 Barrel
Caliber: 5.56/.223
Barrel Size: 16"
Original price was: $223.58.Current price is: $149.00. View Product
-20% Out of stock

17.1″ 223 Wylde 1:8 SS Twist Fluted Ar15 Barrel, TiN Gold
Barrel Size: 18"
Caliber: 5.56/.223

Rated 5.00 out of 5 based on 1 customer rating
(1)
Original price was: $349.00.Current price is: $279.00. View Product
-30% Out of stock

20″ AR-10 .243 Win Barrel (1:8 with Rifle Gas)
Barrel Size: 20"
Original price was: $249.99.Current price is: $174.99. View Product
-44% Out of stock

20″ Stainless Fluted 5.56 Nato 5R Rifled 1:8 Ar15 Barrel
Original price was: $357.19.Current price is: $199.00. View Product
-48% Out of stock

20″ Stainless Spiral Fluted .223 Wylde 1:8 Ar15 Barrel
Barrel Size: 20"
Caliber: 5.56/.223

Rated 5.00 out of 5 based on 2 customer ratings
(2)
Original price was: $383.65.Current price is: $199.00. View Product
-26% Out of stock

24″ 223 Wylde 1:9 4150 Heavy Fluted Ar15 Bull Barrel
Caliber: 5.56/.223
Barrel Size: 24"
Original price was: $355.88.Current price is: $263.28. View Product
-38% Out of stock

24″ 5.56 / .223 Wylde SS Diamond Fluted 1:8 .936 Bull Barrel, Threaded
Model Style: Ar-15
Thread Pitch: 1/2x28

Rated 5.00 out of 5 based on 1 customer rating
(1)
Original price was: $322.04.Current price is: $199.28. View Product
-29% Out of stock

24″ 5.56 / .223 Wylde SS Spiral Fluted 1:8 .936 Ar15 Heavy Barrel – Oilslick / Chameleon / Rainbow pvd
Barrel Size: 24"
Caliber: 5.56/.223

Rated 4.25 out of 5 based on 4 customer ratings
(4)
Original price was: $422.04.Current price is: $299.28. View Product
Out of stock

24″ 5.56 / .223 Wylde SS Spiral Fluted 1:8 .936 bull Heavy Barrel
Caliber: 5.56/.223
Barrel Size: 24"

Rated 5.00 out of 5 based on 1 customer rating
(1)
View Product
-38% Out of stock

24″ 5.56 / .223 Wylde Stainless Fluted 1:8 .875 Heavy Barrel
Barrel Size: 24"
Caliber: 5.56/.223
Original price was: $422.04.Current price is: $263.28. View Product
Out of stock

4″ Picatinny Quad Rail for AR15
Rail Length: 4"

Rated 5.00 out of 5 based on 1 customer rating
(1)
$69.99 View Product
-24% Out of stock

450 Bushmaster Ar15 Barrel 18″
Caliber: .450 Bushmaster
Barrel Size: 18"
Original price was: $263.28.Current price is: $199.00. View Product
-46% Out of stock

5″ 9mm Nitride Ar15 Barrel
Caliber: 9mm
Barrel Size: 5"
Original price was: $183.90.Current price is: $99.00. View Product
-57% Out of stock

6.5 Creedmoor 18″ 416r Stainless Fluted Barrel Lr 308 ar
Caliber: 6.5 Creedmoor
Barrel Size: 18"
Original price was: $461.72.Current price is: $197.12. View Product
-29% Out of stock

6.5 Creedmoor 22″ 416r Stainless Fluted Barrel Lr308 / Ar10
Original price was: $461.72.Current price is: $329.42. View Product

Showing 337–384 of 408 results