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

Showing 337–384 of 384 results

-35% Out of stock

16″ Stainless 300 AAC Blackout 1:8 Socom Ar15 Threaded Barrel
Caliber: 300 BLK
Barrel Size: 16"
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
Caliber: 7.62x39
Barrel Size: 16"
Original price was: $263.28.Current price is: $130.98. View Product
-20% Out of stock

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

Rated 5.00 out of 5 based on 4 customer ratings
(4)
Original price was: $249.00.Current price is: $199.00. 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
-41% Out of stock

18″ Socom 5.56 / .223 Wylde Midlength Midweight Ar15 Barrel
Caliber: 5.56/.223
Barrel Size: 18"
Original price was: $304.22.Current price is: $179.20. 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
Caliber: 5.56/.223
Barrel Size: 20"

Rated 5.00 out of 5 based on 2 customer ratings
(2)
Original price was: $383.65.Current price is: $199.00. View Product
-16% Out of stock

224 Valkyrie – 18″ Stainless 416r 1:7 Ar15 Barrel
Caliber: .224 Valkyrie
Barrel Size: 18"
Original price was: $329.42.Current price is: $276.50. View Product
-25% Out of stock

224 Valkyrie 22″ 1:7 416r .224 SS Spiral Flute Ar15 Barrel
Barrel Size: 22"
Caliber: .224 Valkyrie
Original price was: $369.12.Current price is: $276.50. View Product
-26% Out of stock

24″ 223 Wylde 1:9 4150 Heavy Fluted Ar15 Bull Barrel
Barrel Size: 24"
Caliber: 5.56/.223
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 2tone
Caliber: 5.56/.223
Thread Pitch: 1/2x28
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
Barrel Size: 24"
Caliber: 5.56/.223

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
-40% Out of stock

3″ 9mm Ar15 Ar9 5/8-24 Threaded Barrel – Stainless Steel
Original price was: $197.12.Current price is: $119.00. 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″
Barrel Size: 18"
Caliber: .450 Bushmaster
Original price was: $263.28.Current price is: $199.00. View Product
-57% Out of stock

6.5 Creedmoor 18″ 416r Stainless Fluted Barrel Lr 308 ar
Barrel Size: 18"
Caliber: 6.5 Creedmoor
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
-32% Out of stock

6.5 Grendel Type II Stainless Ar15 Barrels – 18, 20
Original price was: $329.42.Current price is: $223.58. View Product
-35% Out of stock

7.5″ 9mm Nitride Ar15 Barrel
Original price was: $183.90.Current price is: $119.00. View Product
-40% Out of stock

7.5″ 9mm Stainless Ar15 Barrel
Original price was: $197.12.Current price is: $119.00. View Product
-2% Out of stock

7.62×39 AR15 Barrel and BCG Combo DEAL
Original price was: $283.49.Current price is: $279.00. View Product
-10% Out of stock

7″ Gen3 Slim Free Float Handguard
Rail Length: 7"
Original price was: $130.98.Current price is: $117.74. View Product
-15% Out of stock

Aero Precision M5 .308 Assembled Upper Receiver – Anodized Black
Original price was: $205.07.Current price is: $174.31. View Product
Out of stock

Ar15 One piece Enhanced Spiral Gas Ring

Rated 5.00 out of 5 based on 1 customer rating
(1)
$13.21 View Product
Out of stock

AR15 XL Assembled Upper Receiver – 458 / 450 / 50 big bore
$130.96 View Product
-7% Out of stock

BCMGUNFIGHTER™ Charging Handle w/ Mod 3B (LARGE) Latch
Original price was: $74.95.Current price is: $69.99. View Product
-48% Out of stock

Blem Titanium Nitride TiN M16 / Ar15 MPI BCG 5.56/223

Rated 5 out of 5 based on 1 customer rating
(1)
Original price was: $288.54.Current price is: $149.00. View Product
-30% Out of stock

Blem*TiN Titanium Nitride Gold 18″ Fluted .223 Wylde Ar15 Barrel
Barrel Size: 18"
Caliber: 5.56/.223
Original price was: $329.42.Current price is: $229.42. View Product
-55% Out of stock

Blue chameleon PVD m16 Ar15 Bolt Carrier Group BCG

Rated 4.67 out of 5 based on 3 customer ratings
(3)
Original price was: $329.42.Current price is: $149.12. View Product
-20% Out of stock

Blue Stars American Flag PVD m16 Ar15 Bolt Carrier Group BCG
Caliber: 5.56/.223, 300 BLK, .350 Legend

Rated 5.00 out of 5 based on 1 customer rating
(1)
Original price was: $199.99.Current price is: $159.50. View Product
Out of stock

FailZero Nickel Boron EXO Coated M16 Complete Bolt Carrier Group
$211.67 View Product
-40% Out of stock

Flat Dark Earth m16 FDE pvd ar15 bolt carrier group BCG
Original price was: $248.80.Current price is: $149.80. View Product
-28% Out of stock

Graphite BCG & Red extended latch Charging Handle
Original price was: $329.42.Current price is: $236.82. View Product
Out of stock

Left Hand Stag Arms / Aero Ar15 Flat Top Stripped / Assembled Upper

Rated 5.00 out of 5 based on 1 customer rating
(1)
$119.00 View Product
-13% Out of stock

MSF 16” 12.7×42 Upper Receiver Assembly
Style: Rifle
Caliber: 12.7x42
Original price was: $399.00.Current price is: $349.00. View Product
-49% Out of stock

Blem 5” 9mm Ar15 Ar9 Quad Rail Pistol Upper Assembly
Barrel Size: 5"
Style: Pistol

Rated 5.00 out of 5 based on 1 customer rating
(1)
Original price was: $349.00.Current price is: $179.00. View Product
-5% Out of stock

Nickel Boron EXO 308 / LR308 Dpms Bolt Carrier Group BCG ar10
Caliber: .308, 6.5 Creedmoor
Model Style: AR10 / LR-308
Original price was: $263.28.Current price is: $250.04. View Product
-38% Out of stock

Oilslick 224 Valkyrie 22″ 1:7 416r Spiral Ar15 Barrel
Caliber: .224 Valkyrie
Barrel Size: 22"
Original price was: $633.72.Current price is: $395.58. View Product
-16% Out of stock

Stripped Lightweight Ar15 Sport Upper – No dc/fa

Rated 5.00 out of 5 based on 3 customer ratings
(3)
Original price was: $71.43.Current price is: $59.99. View Product
-35% Out of stock

TiN Titanium Nitride 10.5″ 223 wylde Ar15 pistol Barrel
Caliber: 5.56/.223
Barrel Size: 10.5"
Original price was: $304.22.Current price is: $199.00. View Product
Out of stock

TiN Titanium Nitride 18″ spiral flute 223 wylde Ar15 Barrel
Barrel Size: 18"
Caliber: 5.56/.223
$329.42 View Product
-38% Out of stock

TiN Titanium Nitride Gold 1/2-28 Muzzle Brake Comp
Thread Pitch: 1/2x28

Rated 5.00 out of 5 based on 1 customer rating
(1)
Original price was: $79.37.Current price is: $49.00. View Product
Out of stock

TiN Titanium Nitride Gold 18″ Fluted .223 Wylde Ar15 Barrel
Barrel Size: 18"
Caliber: 5.56/.223
$329.42 View Product
-45% Out of stock

Titanium Nitride TiN M16 / Ar15 MPI Bolt Carrier Group 5.56/223

Rated 5 out of 5 based on 2 customer ratings
(2)
Original price was: $288.54.Current price is: $159.00. View Product
-62% Out of stock

ToolCraft Melonite / Black Nitride M16 Bolt Carrier Group
Original price was: $260.04.Current price is: $99.00. View Product

Showing 337–384 of 384 results