Upper Receiver Parts & Kits for Sale | AR-15 Upper Receiver Assembly — Mid State Firearms - Page 6

Showing 241–288 of 359 results

-13%

MSF 16″ 7.62x39mm Upper Receiver Assembly
Caliber: 7.62x39
Barrel Size: 16"

2 reviews
Original price was: $374.00.Current price is: $324.00.
-11%

MSF 18” .450 Bushmaster Upper Receiver Assembly
Style: Rifle
Barrel Size: 18"

1 review
Original price was: $439.00.Current price is: $389.00.
-8%

MSF 18” 5.56/.223 Upper Receiver Assembly
Style: Rifle
Barrel Size: 18"

Original price was: $379.00.Current price is: $349.00.
-12%

MSF 18” 6.5 Grendel Upper Receiver Assembly
Caliber: 6.5 Grendel
Barrel Size: 18"

Original price was: $429.00.Current price is: $379.00.
-33%

MSF 20” 5.56/.223 Wylde Ar15 Upper Assembly with 15″ gen3 MLok – blem
Barrel Size: 20"
Style: Rifle

12 reviews
Original price was: $449.00.Current price is: $299.00.
-13%

MSF 20” SS Fluted (Rifle Gas) 5.56/.223 Ar15 Upper Assembly
Barrel Size: 20"
Style: Rifle

4 reviews
Original price was: $449.00.Current price is: $389.00.
-14%

MSF 3” 9mm Pistol Upper Assembly
Caliber: 9mm
Barrel Size: 3"

Original price was: $349.00.Current price is: $299.00.
-49%

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

Original price was: $349.00.Current price is: $179.00.
-14%

MSF 5” 9mm Pistol Upper Assembly
Style: Pistol
Caliber: 9mm

Original price was: $349.00.Current price is: $299.00.
-13%

MSF 7.5″ Pistol 7.62x39mm Upper Assembly
Barrel Size: 7.5"
Style: Pistol

Original price was: $374.00.Current price is: $324.00.
-14%

MSF 7.5” Pistol 300 Blackout Upper Assembly
Style: Pistol
Barrel Size: 7.5"

Original price was: $349.00.Current price is: $299.00.
-14%

MSF 7.5” Pistol 5.56/.223 Upper Assembly
Style: Pistol
Caliber: 5.56/.223

Original price was: $349.00.Current price is: $299.00.
-14%

MSF 7” 9mm Pistol Upper Assembly
Caliber: 9mm
Barrel Size: 7"

Original price was: $349.00.Current price is: $299.00.
-46%

Flash Sale! 8.5” Pistol 300 Blackout Blem Ar15 Upper
Barrel Size: 8.5"
Style: Pistol

8 reviews
Original price was: $349.00.Current price is: $189.00.
-14%

MSF 8.5” Pistol 300 Blackout Upper Assembly
Caliber: 300 BLK
Barrel Size: 8.5"

1 review
Original price was: $349.00.Current price is: $299.00.
-14%

MSF 8.5” Pistol 5.56/.223 Upper Assembly
Caliber: 5.56/.223
Style: Pistol

Original price was: $349.00.Current price is: $299.00.
-65%

MSF Ar15 Ejection Port Dust Cover Assembly / Kit – Complete

Original price was: $17.18.Current price is: $5.99.
-62%

MSF Ar15 Forward Assist Assembly – Complete

1 review
Original price was: $26.46.Current price is: $9.99.
-60%

MSF Oversized Extended Latch charging handle- Black

Original price was: $72.76.Current price is: $29.13.
-48%

Nickel Boron EXO M16 / Ar15 Full Auto Bolt Carrier Group
Caliber: 5.56/.223, 300 BLK, .350 Legend

1 review
Original price was: $304.22.Current price is: $159.00.
-62%

OilSlick Ar15 / M16 Bolt CARRIER ONLY

1 review
Original price was: $263.28.Current price is: $99.00.
-20%

PVD rainbow OilSlick Ar15 M16 BCG Bolt Carrier group

6 reviews
Original price was: $199.99.Current price is: $159.99.
-47%

Replacement knurled Ar15 Gas Block Set Screws – Set of 10

5 reviews
Original price was: $25.13.Current price is: $13.21.
-24%

Replacement knurled Ar15 Gas Block Set Screws – Set of 2

8 reviews
Original price was: $3.96.Current price is: $2.99.
-37%

SALE! *blem* m4 Stripped upper with dust cover & fwd assist kit

Original price was: $119.06.Current price is: $74.99.
-50%

Spectre Flash Hider .223
Thread Pitch: 1/2x28

2 reviews
Original price was: $39.67.Current price is: $19.99.
-24%

Stainless 1/2-28 Thread Protector
Thread Pitch: 1/2x28

Original price was: $13.21.Current price is: $9.99.
Stainless Tanker Style Comp Brake 1/2-28
Thread Pitch: 1/2x28

$78.06
-16%

Stripped Lightweight Ar15 Sport Upper – No dc/fa

3 reviews
Original price was: $71.43.Current price is: $59.99.
-27%

TiN Titanium Nitride 1/2-28 Thread Protector
Thread Pitch: 1/2x28

Original price was: $26.00.Current price is: $19.00.
-26%

TiN Titanium Nitride Ar15 .750 steel low profile gas block

Original price was: $66.13.Current price is: $49.00.
TiN Titanium Nitride Gold 18″ Fluted .223 Wylde Ar15 Barrel
Caliber: 5.56/.223
Barrel Size: 18"

$329.42
-45%

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

2 reviews
Original price was: $288.54.Current price is: $159.00.
-62%

ToolCraft Melonite / Black Nitride M16 Bolt Carrier Group

Original price was: $260.04.Current price is: $99.00.
-46%

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

4 reviews
Original price was: $461.72.Current price is: $249.00.
-42%

24″ 223 Wylde 1/8 Diamond Fluted 2tone SS Ar-15 Upper, Threaded
Style: Rifle
Barrel Size: 24"

3 reviews
Original price was: $599.00.Current price is: $349.00.
-38%

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

Original price was: $322.04.Current price is: $199.28.
-46%

Custom Color / Caliber PVD m16 Ar Bolt Carrier Group BCG

1 review
Original price was: $329.42.Current price is: $179.12.
Oilslick Rainbow PVD Competition Muzzle Brake SS 1/2-28 223

2 reviews
$79.37
Oilslick Rainbow PVD Competition Muzzle Brake SS 5/8-24 .30cal
Caliber: .308

$79.37
-20%

Left Hand PVD rainbow Chameleon OilSlick Ar15 M16 BCG Bolt Carrier group

Original price was: $249.99.Current price is: $199.99.
-5% Out of stock

Aero Precision Breach Ambidextrous Charging Handle – Ar15 / M16 – Black

Original price was: $95.00.Current price is: $89.99.
Out of stock

Ar15 PITA 10″ slim quad rail handguard, blem/clearance

$29.00
-33% Out of stock

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

1 review
Original price was: $269.00.Current price is: $179.00.
-28% Out of stock

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

1 review
Original price was: $179.00.Current price is: $129.00.
-30% Out of stock

24″ 223 Wylde 1/8 Spiral Fluted Stainless Ar-15 Upper with M-Lok rail Threaded
Style: Rifle
Barrel Size: 24"

Original price was: $499.00.Current price is: $349.00.
-25% Out of stock

16″ 223 Wylde 1:8 Diamond Fluted Midlength Ar15 Barrel – TiN Gold
Caliber: 5.56/.223
Thread Pitch: 1/2x28

Original price was: $399.00.Current price is: $299.00.
-40% Out of stock

16” Non-threaded Ar-15 upper – 300 Blackout with MLOK Handguard
Caliber: 300 BLK
Barrel Size: 16"

Original price was: $499.00.Current price is: $299.00.

Showing 241–288 of 359 results