AR-15 and AR-10 Parts and Receivers | AR 15 Components for Sale — Mid State Firearms

Showing 1–48 of 113 results

-20%

16″ MSF 5.56 Nato 1/7 MidLength Ar15 Upper – XTreme CNC MLok Rail
Thread Pitch: 1/2x28
Caliber: 5.56/.223
Original price was: $499.00.Current price is: $399.00. View Product
-50%

18″ AR-15 Complete Upper – 416R Stainless Fluted .223 Wylde 1:8, Microbest BCG
Barrel Size: 18"
Caliber: 5.56/.223
Original price was: $799.00.Current price is: $399.00. View Product
-50%

20″ AR-15 Complete Upper – 416R Stainless Fluted .223 Wylde, Microbest BCG
Barrel Size: 20"
Model Style: Ar-15
Original price was: $799.00.Current price is: $399.00. View Product
-37%

16″ Spiral Flute Rainbow PVD Oilslick 5.56 / 223 SS Ar15 Barrel
Caliber: 5.56/.223
Barrel Size: 16"

Rated 4.40 out of 5 based on 5 customer ratings
(5)
Original price was: $395.58.Current price is: $249.00. View Product
-46%

18″ Spiral Flute Rainbow PVD Oilslick .223 Wylde SS Ar15 Barrel
Barrel Size: 18"
Caliber: 5.56/.223

Rated 4.50 out of 5 based on 4 customer ratings
(4)
Original price was: $461.72.Current price is: $249.00. View Product
-29%

16″ Black Fluted .223 Wylde Ar-15 Upper
Caliber: 5.56/.223
Barrel Size: 16"

Rated 4.00 out of 5 based on 2 customer ratings
(2)
Original price was: $349.99.Current price is: $249.99. View Product
-37%

Microbest m16 Full Chrome HPT / MPI Bolt Carrier Group BCG, Sprinco, OCKS, Phos Extractor, blem
Caliber: 5.56/.223, 300 BLK

Rated 4.50 out of 5 based on 16 customer ratings
(16)
Original price was: $189.00.Current price is: $118.99. View Product
-20%

24″ 223 Wylde 1/8 Diamond Fluted Stainless Ar-15 Upper with M-Lok rail
Barrel Size: 24"
Caliber: 5.56/.223

Rated 4.71 out of 5 based on 7 customer ratings
(7)
Original price was: $499.00.Current price is: $399.00. View Product
-50%

18″ Grab Bag / Clearance / Blem Ar15 RIFLE Upper w/ Free Float Handguard
Barrel Size: 16"
Caliber: 5.56/.223

Rated 5.00 out of 5 based on 6 customer ratings
(6)
Original price was: $499.00.Current price is: $249.00. View Product
-26%

13.9″ 5.56 / 223 GOV PROFILE MIDLENGTH AR 15 BARREL, BA MODERN SERIES
Caliber: 5.56/.223
Barrel Size: 13.9"

Rated 5.00 out of 5 based on 1 customer rating
(1)
Original price was: $160.00.Current price is: $119.00. View Product
-27%

16” 5.56 Ultralight 2lb Ar15 Sport Upper
Thread Pitch: 1/2x28
Barrel Size: 16"

Rated 4.00 out of 5 based on 1 customer rating
(1)
Original price was: $299.00.Current price is: $219.00. View Product
-50%
New!

16” 223 Wylde Mid Length Diamond Fluted 1/8 Ar15 stainless barrel
Caliber: 5.56/.223
Barrel Size: 16"
Original price was: $399.00.Current price is: $199.00. View Product
-42%

24″ 223 Wylde 1/8 Diamond Fluted SS Ar-15 Upper, Threaded
Thread Pitch: 1/2x28
Model Style: Ar-15

Rated 4.20 out of 5 based on 5 customer ratings
(5)
Original price was: $599.00.Current price is: $349.00. View Product
-50%

24″ 223 Wylde 1/8 Spiral Fluted 2tone SS Ar-15 Upper Assembly, Crowned
Thread Pitch: 1/2x28
Barrel Size: 24"

Rated 4.25 out of 5 based on 4 customer ratings
(4)
Original price was: $599.00.Current price is: $299.00. View Product
-67%

24” .936 Heavy Bull Barrel for Ar15. 2 tone spiral fluted Stainless 223 wylde 1:8
Barrel Size: 16"
Caliber: 5.56/.223

Rated 4.60 out of 5 based on 5 customer ratings
(5)
Original price was: $599.00.Current price is: $199.00. View Product
2BO Double Port Ar15 Muzzle Brake Outside Threaded
Caliber: .308, 5.56/.223, 9mm
Thread Pitch: 1/2x28, 5/8x24
$34.99 View Product
-39%

Bolt Only – Microbest m16 Full Chrome HPT / MPI Bolt Face Assembly, Sprinco
Caliber: 5.56/.223, 300 BLK

Rated 5.00 out of 5 based on 1 customer rating
(1)
Original price was: $129.00.Current price is: $79.00. View Product
-39%

Bolt Only – Microbest m16 Full Chrome HPT / MPI Bolt Face Assembly, Sprinco, blem
Caliber: 5.56/.223, 300 BLK
Original price was: $129.00.Current price is: $79.00. View Product
Breek Arms 2BO-S Short Ar15 Muzzle Brake Single Port
Thread Pitch: 1/2x28, 5/8x24
Caliber: .308, 5.56/.223, 9mm
$34.99 View Product
Breek Arms 3FO Ar15 Flash Hider v2 3 Prong
Thread Pitch: 1/2x28, 5/8x24
Caliber: .308, 5.56/.223, 9mm
$34.99 View Product
Breek Arms 3FO-S Ar15 Flash Hider Short
Thread Pitch: 1/2x28, 1/2x36, 5/8x24
Caliber: .308, 5.56/.223, 9mm
$34.99 View Product
Breek Arms BFO Ar15 Flash Hider Cage Style, Caged 3prong
Caliber: .308, 5.56/.223, 9mm
Thread Pitch: 1/2x28, 5/8x24
$34.99 View Product
-33%

Grab Bag / Clearance / Blem Ar15 PISTOL Upper w/ Free Float Handguard
Caliber: 5.56/.223
Barrel Size: 7.5"

Rated 4.89 out of 5 based on 18 customer ratings
(18)
Original price was: $299.00.Current price is: $199.00. View Product
-33%

Grab Bag / Clearance / Blem Ar15 RIFLE Upper w/ Free Float Handguard
Caliber: 5.56/.223
Barrel Size: 16"

Rated 4.85 out of 5 based on 60 customer ratings
(60)
Original price was: $299.00.Current price is: $199.00. View Product
-17%

Microbest m16 Full Chrome HPT / MPI Bolt Carrier Group BCG, Sprinco, OCKS,
Caliber: 5.56/.223, 300 BLK
Original price was: $179.00.Current price is: $149.00. View Product
-25%

Microbest m16 Full Chrome HPT / MPI Bolt Carrier Group BCG, Sprinco, OCKS, oring
Caliber: 5.56/.223, 300 BLK
Original price was: $199.00.Current price is: $149.00. View Product
-17%

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

Rated 5.00 out of 5 based on 4 customer ratings
(4)
Original price was: $179.00.Current price is: $149.00. View Product
-39%

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%

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
-50%

MSF 13.9″ 5.56 / 223 GOV PROFILE MIDLENGTH Nitride AR 15 BARREL
Barrel Size: 24"
Caliber: 5.56/.223

Rated 5.00 out of 5 based on 1 customer rating
(1)
Original price was: $199.00.Current price is: $99.00. View Product
-50%

MSF 13.9” 223 Wylde 1/7 Ar15 Barrel – 4150 CrMoV Nitride
Caliber: 5.56/.223
Barrel Size: 13.9"
Original price was: $199.00.Current price is: $99.00. View Product
-29%

MSF 16″ Diamond Fluted Mid Length Ar15 Barrel, .223 Wylde 1:7 2-Tone
Model Style: Ar-15
Thread Pitch: 1/2x28

Rated 5.00 out of 5 based on 2 customer ratings
(2)
Original price was: $279.00.Current price is: $199.00. View Product
-37%

MSF x Breek Arms 14.5″ Pin & Weld Ar15 Upper – Ambi Charging Handle, MLok Rugged Rail
Rail Length: 13
Thread Pitch: 1/2x28
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
Barrel Size: 14.5"
Rail Length: 13
Original price was: $795.00.Current price is: $499.00. View Product
-12%

SureFire BC Warcomp QD Flash Hider 223 Cal (5.56mm) 1/2″-28 tpi, Closed Tine 3-Prong
Model Style: Ar-15, M4
Caliber: 5.56/.223
Original price was: $169.00.Current price is: $149.00. View Product
-33%

*PREMIUM Rifle Build Kit* 3lb Trigger with Slim Rail & Nickel BCG
Style: Rifle
Caliber: 5.56/.223

Rated 5 out of 5 based on 3 customer ratings
(3)
Original price was: $1,348.99.Current price is: $899.00. 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
Barrel Size: 10.5"
Caliber: 5.56/.223
Original price was: $263.28.Current price is: $129.00. View Product
-6%

12.5″ Rosco Bloodline 4150cmv 5.56 Ar15 Barrel
Caliber: 5.56/.223
Barrel Size: 12.5"
Original price was: $140.00.Current price is: $131.50. View Product
-49%

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

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

16″ 223 Wylde 1:8 Melonite M4 Ar15 Barrel
Barrel Size: 16"
Caliber: 5.56/.223
Original price was: $276.50.Current price is: $129.00. View Product
-13%

16″ 5.56 1:7 GOV PROFILE MIDLENGTH AR 15 BARREL, Ballistic Adv.
Caliber: 5.56/.223
Barrel Size: 16"
Original price was: $160.00.Current price is: $139.00. View Product
-13%

16″ 5.56 M4 CARBINE LENGTH AR 15 BARREL, MODERN SERIES, BA
Caliber: 5.56/.223
Barrel Size: 16"
Original price was: $160.00.Current price is: $139.00. View Product
-38%

16″ Mid-Length 5.56 NATO 1:7 4150 Ar15 Barrel
Barrel Size: 16"
Caliber: 5.56/.223
Original price was: $223.58.Current price is: $139.00. View Product
-46%

16″ SS 5.56 / 223 Wylde 1:8 Mid-Length Lightweight Pencil Barrel
Caliber: 5.56/.223
Barrel Size: 16"

Rated 5.00 out of 5 based on 2 customer ratings
(2)
Original price was: $304.22.Current price is: $165.31. View Product

Showing 1–48 of 113 results