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

Showing 1–48 of 503 results

-33%

*Combo Deal* Microbest Chrome BCG and Ballistic Advantage 16″ 5.56 Ar15 Barrel
Original price was: $299.00.Current price is: $199.00. View Product
1/2-28 Thread Protector – Knurled, Black -Phalanx Tactical Precision
Thread Pitch: 1/2x28
$12.95 View Product
-33%
New!

10.5″ 300Blk Ar15 Upper with Ultralight MLok Rail
Caliber: 300 BLK
Barrel Size: 10.5"
Original price was: $449.00.Current price is: $299.00. View Product
-40%
New!

12.5″ 5.56 AR-15 Upper Receiver – 1:8 Nitride Barrel – MxF 11″ M-LOK Rail
Model Style: Ar-15
Barrel Size: 12.5"
Original price was: $499.00.Current price is: $299.00. View Product
-35%
New!

12.5″ 5.56/223 AR-15 Upper – 1:7 mid, 4150 CMV Nitride Barrel | Suppressor Tuckable M-LOK (Copy)
Caliber: 5.56/.223
Barrel Size: 12.5"
Original price was: $539.00.Current price is: $349.00. View Product
-35%
New!

12.5″ 5.56/223 AR-15 Upper – 1:8, 4150 CMV Nitride Barrel | Suppressor Tuckable M-LOK
Caliber: 5.56/.223
Barrel Size: 12.5"
Original price was: $539.00.Current price is: $349.00. View Product
-46%
New!

13″ Super Heavy Duty Ar15 Quad Rail Handguard
Original price was: $219.00.Current price is: $119.00. View Product
-10%
New!

15″ Large ID M-LOK Handguard – 1.75” ID Suppressor-Ready AR-15 Rail
Original price was: $199.00.Current price is: $179.00. View Product
-13%
New!

16″ 5.56 NATO 1/7 Ar15 Barrel – 4150 CMV Nitride, Carbine
Caliber: 5.56/.223
Barrel Size: 16"
Original price was: $159.00.Current price is: $139.00. View Product
-37%

16″ AR-15 Barrel — 416R Stainless, 223 Wylde 1:8 Twist, M4 Profile, Carbine
Barrel Size: 16"
Caliber: 5.56/.223
Original price was: $189.00.Current price is: $119.00. View Product
-37%

16″ AR-15 Barrel — 416R Stainless, 5.56 Nato 1:8 Twist, M4 Profile, Carbine
Caliber: 5.56/.223
Barrel Size: 16"
Original price was: $189.00.Current price is: $119.00. View Product
-45%
New!

16″ Ar15 Upper – 5.56 Nato 1:7, 13″ SHD Quad Rail
Barrel Size: 16"
Caliber: 5.56/.223
Original price was: $449.00.Current price is: $249.00. View Product
-20%

16″ MSF 5.56 Nato 1/7 MidLength Ar15 Upper – XTreme CNC MLok Rail
Thread Pitch: 1/2x28
Rail Length: 15"
Original price was: $499.00.Current price is: $399.00. View Product
-36%

16″ MSF Light Premium Ar15 Build Kit – 5.56 BA Barrel, Microbest Chrome BCG, Warhammer Ambi Charging Handle
Barrel Size: 16"
Model Style: Ar-15
Original price was: $699.00.Current price is: $449.00. View Product
-16%
New!

16″ Spiral Fluted 5.56 NATO AR15 Barrel – Mid Length Gas, 1:8 Twist, Black Nitride, Gold TiN Extension
Original price was: $224.99.Current price is: $189.99. View Product
16” 223 wylde 1:8 black 4150 straight fluted HBAR barrel
$149.00 View Product
-50%

18″ AR-15 Complete Upper – 416R Stainless Fluted .223 Wylde 1:8, Microbest BCG
Caliber: 5.56/.223
Style: Rifle
Original price was: $799.00.Current price is: $399.00. View Product
-34%

20″ AR-15 Complete Upper – 416R Stainless Fluted .223 Wylde, Microbest BCG
Model Style: Ar-15
Barrel Size: 20"
Original price was: $799.00.Current price is: $529.00. View Product
-13%

5.56 Left Handed m16 BCG – Lefty Ar15 Bolt Carrier Group – Nitride
Original price was: $149.00.Current price is: $129.00. View Product
5/8-24 Thread Protector – Knurled with Wrench Flats, Black Phalanx Tactical Precision
Thread Pitch: 5/8x24
$12.95 View Product
5/8-24 Thread Protector – Knurled, Black Phalanx Tactical Precision
Thread Pitch: 5/8x24
$12.95 View Product
-23%

8.5″ AR-15 Pistol Barrel — 5.56 NATO M4 Contour, Parkerized 1:7 Twist 4150 CMV
Model Style: Ar-15
Thread Pitch: 1/2x28
Original price was: $129.00.Current price is: $99.00. View Product
-31%

AR-15 Left-Handed Billet Stripped Upper Receiver – Slick Side, no DCFA. CNC Machined, No Forward Assist
Original price was: $129.00.Current price is: $89.00. View Product
-20%
New!

Ar10 / 308 / Dpms LR308 compatible Charging Handle
Original price was: $24.99.Current price is: $19.99. View Product
-50%

Ar15 Lower Spring Kit – Complete Oops Spring Kit for AR-15 Lowers
Original price was: $9.99.Current price is: $4.99. View Product
-70%

Basic Skeleton Pistol Fin Brace – Fits Milspec Ar15 buffer Tube
Original price was: $99.00.Current price is: $30.00. View Product
-50%
New!

DIY build your own Ar15 buffer hollow body
Original price was: $19.99.Current price is: $9.99. View Product
Left hand eject 450 bushmaster 18” Ar15 complete lefty upper
$1,199.00 View Product
-20%
New!

Matrix Arms V2 AR-15 Upper & Lower Receiver Set
Original price was: $249.99.Current price is: $199.99. View Product
-42%

MidState Defense 12.5″ AR-15 Barrel — 5.56 Nato 1/8, 4150 CMV, Nitride, Carbine Gas
Barrel Size: 12.5"
Caliber: 5.56/.223
Original price was: $259.00.Current price is: $149.00. View Product
-30%

MSF 16″ 4150 Fluted 223 Wylde Complete Ar15 Upper with 10″ Gen3 ‘blem’ Rail, BcG, Charging Handle
Original price was: $499.00.Current price is: $349.00. View Product
New!

MX556 Gen 2 AR15 Rifle – 5.56 NATO | Precision Built
$2,799.00 View Product
-38%

RBC 12.5″ AR-15 Barrel — 4150 CMV, Parkerized, 5.56 Nato 1:7 Mid Length
Caliber: 5.56/.223
Barrel Size: 12.5"
Original price was: $159.00.Current price is: $99.00. View Product
Thread Adapter – 1/2×28 to 5/8×24 – Phalanx Tactical Precision
Thread Pitch: 1/2x28
$17.95 View Product
-26%

Combo Deal! Microbest Chrome ‘blem’ BCG and Aero Precision Breach Ambi Charging Handle

Rated 5.00 out of 5 based on 1 customer rating
(1)
Original price was: $269.00.Current price is: $199.00. View Product
-40%

“Blem” Microbest M16 Full Chrome Bolt Carrier Group – MPI , HPT , OCKS, Sprinco, Chrome Extractor

Rated 4.78 out of 5 based on 18 customer ratings
(18)
Original price was: $199.00.Current price is: $119.00. View Product
-40%

“Blem” Microbest M16 Full Chrome Bolt Carrier Group – MPI , HPT , OCKS, Sprinco, Phos Extractor
Original price was: $199.00.Current price is: $119.00. View Product
-46%

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

Rated 4.50 out of 5 based on 4 customer ratings
(4)
Original price was: $461.72.Current price is: $249.00. View Product
-34%

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: $449.99.Current price is: $299.00. 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
-43%

13.9” MSF x Criterion pinned & welded 5.56 / 223 Wylde 1:8 Ar15 Mlok Upper

Rated 5.00 out of 5 based on 1 customer rating
(1)
Original price was: $1,049.00.Current price is: $599.00. View Product
-20%

10.5″ 300 Blackout Grab Bag Upper
Barrel Size: 10.5"
Caliber: 300 BLK

Rated 4.93 out of 5 based on 14 customer ratings
(14)
Original price was: $249.99.Current price is: $198.99. View Product
-20%

24″ 223 Wylde 1/8 Diamond Fluted Stainless Ar-15 Upper with M-Lok rail, Crowned
Style: Rifle
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
Caliber: 5.56/.223
Barrel Size: 16"

Rated 5.00 out of 5 based on 6 customer ratings
(6)
Original price was: $499.00.Current price is: $249.00. View Product
-44%
New!

20″ Grab Bag / Clearance / Blem Ar15 RIFLE Upper w/ Free Float Handguard 556/223
Caliber: 5.56/.223
Barrel Size: 16"
Original price was: $499.00.Current price is: $279.00. View Product
-20%

12.5” 308 ar10 / dpms lr308 low profile upper
Original price was: $499.00.Current price is: $399.00. View Product
-26%

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

Rated 5.00 out of 5 based on 1 customer rating
(1)
Original price was: $160.00.Current price is: $119.00. View Product
-50%

16″ Ar15 5.56/223 Upper with Light MLOK Handguard
Barrel Size: 16"

Rated 4.62 out of 5 based on 13 customer ratings
(13)
Original price was: $399.00.Current price is: $199.00. View Product

Showing 1–48 of 503 results