Upper Receiver Parts & Kits for Sale | AR-15 Upper Receiver Assembly — Mid State Firearms - Page 3

Showing 97–144 of 375 results

MSF Ar-15 / M16 / m4 / Ar10 / 308 Stainless Steel Forward Assist

Rated 5.00 out of 5 based on 1 customer rating
(1)
$19.99 View Product
-37%

MSF x Breek Arms 14.5″ Pin & Weld Ar15 Upper – Ambi Charging Handle, MLok Rugged Rail
Model Style: Ar-15
Caliber: 5.56/.223
Original price was: $795.00.Current price is: $499.00. View Product
-37%

MSF x Breek Arms 16″ 5.56 Ar15 Upper – Ambi Charging Handle, MLok Rugged Rail, Brake
Caliber: 5.56/.223
Rail Length: 13
Original price was: $795.00.Current price is: $499.00. View Product
OD Green Micro WARHAMMER Mod2 AR-15 Charging Handle – Breek Arms
View Product
-14%

Oilslick / Chameleon MSF x Breek Warhammer Ar15 Ambi Charging Handle

Rated 5.00 out of 5 based on 1 customer rating
(1)
Original price was: $79.99.Current price is: $69.00. View Product
-10%

Radian Raptor Ambidextrous Ar15 / M16 Charging handle – Black

Rated 5.00 out of 5 based on 1 customer rating
(1)
Original price was: $99.00.Current price is: $89.00. View Product
SilencerCo ASR Flash Hider, 1/2-28 556 / 223
$94.00 View Product
SilencerCo ASR Muzzle Brake 1/2-28 5.56 / 223
Model Style: M4
$94.00 View Product
-12%

SureFire BC Warcomp QD Flash Hider 223 Cal (5.56mm) 1/2″-28 tpi, Closed Tine 3-Prong
Thread Pitch: 1/2x28
Model Style: Ar-15, M4
Original price was: $169.00.Current price is: $149.00. View Product
-10%

Surefire WARCOMP Flash Hider / Suppressor Adapter – 3 Prong 1/2-28
Model Style: M4

Rated 5.00 out of 5 based on 1 customer rating
(1)
Original price was: $169.00.Current price is: $152.00. View Product
T-25 Drive ODS Ar-15 Gas Key Screws, set of 2
$4.99 View Product
Tan / FDE Micro WARHAMMER Mod2 AR-15 Charging Handle – Breek Arms
View Product
-46%

.224 Valkyrie / 6.8 SPC II Bolt Carrier Group (BCG) AR15
Original price was: $257.44.Current price is: $139.00. View Product
-14%

.308 3n1 Hybrid Flash Forwarder / Muzzle Brake 5/8-24 30 cal
Caliber: .308

Rated 5 out of 5 based on 1 customer rating
(1)
Original price was: $92.59.Current price is: $79.37. View Product
-45%

.750 Steel Low Profile Nitride Ar15 Gas Block – Super Nice!

Rated 5.00 out of 5 based on 5 customer ratings
(5)
Original price was: $29.11.Current price is: $15.99. View Product
-33%

.875 Steel Low Profile Gas Block

Rated 5 out of 5 based on 1 customer rating
(1)
Original price was: $59.53.Current price is: $39.67. View Product
-33%

.936 Steel Low Profile Gas Block
Original price was: $59.53.Current price is: $39.67. View Product
-64%

*blem* Blue Stars American Flag PVD Ar15 Bolt Carrier Group BCG
Original price was: $329.42.Current price is: $119.50. View Product
-46%

*blem* Mil Spec Ar15 Stripped Upper Receiver – a3/a4 Flat Top
Original price was: $100.01.Current price is: $54.00. View Product
-24%

1/2-28 Ar15 Flash Can, Black
Thread Pitch: 1/2x28
Original price was: $46.31.Current price is: $35.00. View Product
-33%

1/2″ Crush Washer (5.56/223)
Original price was: $2.98.Current price is: $1.99. View Product
-51%

10.5″ 5.56 NATO AR-15 Barrel — 4150 CMV, M4 Contour, 1:7 Twist
Caliber: 5.56/.223
Barrel Size: 10.5"
Original price was: $263.28.Current price is: $129.00. View Product
-25%

10.5″ 7.62×39 Ar15 Pistol Barrel
Original price was: $157.44.Current price is: $118.80. View Product
-46%

10.5″ 9mm Nitride Ar15 Barrel
Barrel Size: 10.5"
Caliber: 9mm
Original price was: $183.90.Current price is: $99.00. View Product
-50%

10.5″ SS 300 AAC Blackout Ar15 Barrel 1:8 , pistol gas 5/8-24
Caliber: 300 BLK
Barrel Size: 10.5"
Original price was: $263.28.Current price is: $130.98. View Product
-50%

10.5″ Stainless 1:8 5.56 / .223 Wylde Ar15 Barrel
Caliber: 5.56/.223
Barrel Size: 10.5"
Original price was: $263.28.Current price is: $130.98. View Product
-51%

10.5″ Stainless 1:8 5.56 / .223 Wylde Ar15 Barrel
Caliber: 5.56/.223
Barrel Size: 10.5"
Original price was: $263.28.Current price is: $129.00. View Product
10″ 7 Side Free Float M-LOK Rail
Rail Length: 10"
$89.99 View Product
10″ Free Float Quad Rail – Picatinny Handguard
Rail Length: 10"
$59.99 View Product
-37%

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
10″ Slanted Hybrid M-LOK Handguard
Rail Length: 10"
$119.99 View Product
10″ Ultralight M-LOK Handguard Free Float Rail
Rail Length: 10"
$69.99 View Product
-48%

11.5″ 5.56 NATO AR-15 Barrel — 4150 CMV, M4 Contour, 1:7 Twist, Carbine Gas
Caliber: 5.56/.223
Barrel Size: 11.5"
Original price was: $263.28.Current price is: $137.44. View Product
-4%

12.5″ Rosco Bloodline 4150 CMV, Nitride Finish, 1:7 Twist (5.56 NATO) Barrel
Barrel Size: 12.5"
Caliber: 5.56/.223
Original price was: $165.00.Current price is: $159.00. View Product
12″ 7side slim M-Lok AR15 free float Handguard
Rail Length: 12"
$130.98 View Product
12″ Free Float Quad Rail – Picatinny Handguard
Rail Length: 12"
$69.99 View Product
-40%

12″ Gen3 Slim Free Float Rail / Handguard
Rail Length: 12"
Original price was: $165.37.Current price is: $99.00. View Product
-46%

12″ Slanted Hybrid M-Lok Free Float Rail
Rail Length: 12"

Rated 5 out of 5 based on 2 customer ratings
(2)
Original price was: $236.82.Current price is: $129.00. View Product
12″ Ultralight M-LOK Free Float Handguard
Rail Length: 12"
$109.99 View Product
15″ 7side Slim MLok ar15 Free Float Handguard
Rail Length: 15"
$130.98 View Product
-48%

15″ Gen3 Slim Free Float Handguard
Rail Length: 15"

Rated 5 out of 5 based on 1 customer rating
(1)
Original price was: $191.83.Current price is: $99.00. View Product
-53%

15″ Slanted Hybrid M-Lok Free Float Rail
Rail Length: 15"

Rated 4.00 out of 5 based on 1 customer rating
(1)
Original price was: $276.50.Current price is: $129.00. View Product
-23%

15″ Ultralight Slim M-Lok Handguard
Rail Length: 15"
Original price was: $170.66.Current price is: $130.98. View Product
-49%

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%

16″ .223 Wylde 1:8 Stainless Diamond Carbine Fluted Ar15 Barrel
Barrel Size: 16"
Caliber: 5.56/.223
Original price was: $382.34.Current price is: $199.00. View Product
-48%

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
-53%

16″ 223 Wylde 1:8 4150 m4 Ar15 Barrel
Barrel Size: 16"
Caliber: 5.56/.223
Original price was: $276.50.Current price is: $129.00. View Product
-53%

16″ 223 Wylde 1:8 Melonite M4 Ar15 Barrel
Caliber: 5.56/.223
Barrel Size: 16"
Original price was: $276.50.Current price is: $129.00. View Product

Showing 97–144 of 375 results