Free CSS space: 33 kB of 75 kB
AMP is in Sandbox Mode.
Contact Us
+18001234567
Help Center
{{qty}}
Search
Receiver Parts
Filter (1)
Availability
Date Asc
Date Desc
Price High to Low
Price Low to High
Product Name
Items
17
-
32
of
59
< Prev
1
2
3
4
Next >
Sons of Liberty Gun Works M4-EXO3 5.56 AR-15 Upper - 10.5"
$712.50
$649.92
Add to Cart
Sons of Liberty Gun Works M4-76 5.56 AR-15 Upper - 10.5"
$855.00
$779.92
Add to Cart
Maxim Defense MDX 505 PDX Mil-Spec Complete Upper - 5.5" Arid
$1,165.50
View Details
Maxim Defense MDX 505 PDX Mil-Spec Complete Upper - 5.5" Black
$1,165.50
View Details
Daniel Defense MK18 5.56 NATO Complete Upper Receiver - 10.3" Black
$1,412.00
Add to Cart
Sons of Liberty Gun Works M4 Patrol SL 5.56 AR-15 Upper - 16"
$617.50
Add to Cart
Bootleg Mil Spec AR-15 5.56 NATO CamLok (M-Lok) Partial Upper
As low as
$350.92
View Details
Maxim Defense MDX 510 5.56 NATO Mil-Spec Complete Upper - 10.3"
$1,255.50
View Details
Daniel Defense DD4 RIII Complete Upper Receiver - 16" FDE
$1,499.00
Add to Cart
Rainier Arms RUC PRO MK1 5.56 NATO Partial Upper Receiver - 10.5"
$550.00
View Details
Maxim Defense SDX 510 5.56 NATO Integrally Suppressed Upper - 10.3" Black
$2,155.50
Add to Cart
Maxim Defense SDX 510 5.56 NATO Integrally Suppressed Upper - 10.3" Arid
$2,155.50
Add to Cart
Maxim Defense SDX 510 5.56 NATO Integrally Suppressed Upper - 10.3" Urban
$2,155.00
Add to Cart
Noveske N4 Infidel CHF 5.56 NATO Complete Upper Receiver Group - 13.7"
$1,567.50
Add to Cart
Sons of Liberty Gun Works M4-89 5.56 AR-15 Partial Upper Receiver Group - 11.5"
$855.00
Add to Cart
Q LLC Sugar Weasel Upper 5.56 NATO 13"
$1,125.00
Add to Cart
Items
17
-
32
of
59
< Prev
1
2
3
4
Next >
Live Chat
{{{success}}}
Firearms
View All Firearms
Rifles
Handguns
Shotgun
NFA
Pistols
Other Firearms
Silencers
View All Silencers
Rifle Suppressors
Pistol Suppressors
Rimfire Suppressor
Suppressor Accessories
Rifle Parts
View All Rifle Parts
Receiver Parts
Parts & Kits
Barrels
Buffer Systems
Trigger Parts
Gas Systems
Muzzle Devices
Bolt Parts
Grips
Charging Handles
Rifle Handguards
Stocks & Braces
MILSPEC Parts
Shotgun Parts
View All Shotgun Parts
Shotgun Grips
Shotgun Handguard
Shotgun Stocks
Shotgun Accessories
Ammo
View All Ammo
Pistol Ammo
Reloading Supply
Rifle Ammo
Rainier Munitions
Shotgun Ammo
Parts
View All Parts
Pistol parts
Accessories
View All Accessories
AK-47/74 Accessories
Other firearm Accessories
Optics, Sights & Mounts
Flashlights & Mounts
Slings & Mounts
Springs & Extensons
Nylon
Swag
Apparel
Bi-Pods
Eyewear & Hearing Pro
Optics
Rechargeable Batteries
Tools
Holsters & Mag Carriers
Tactical Gear
Gun Cases & Safes
Batteries
Flamethrowers
Axes
Non-Lethal
Shooting Targets
Clearance
Rebate
Sign In
Sign In
Create an Account
Help
Track Order
Shipping Info
Online returns & Exchange
FAQ
Contact Us
Privacy Center
More
Careers
Affiliate Program
Business With Us
Press & Talent
Privacy Policy
Do Not Sell My Info
Terms of Use
Web Accessibility Statement
Shop By
Now Shopping by
Caliber
5.56 NATO
Remove This Item
Category
Stripped Upper Receivers
1
item
Complete Upper Receivers
33
item
Partial Upper Receivers
24
item
Chassis
1
item
Gas Block Diameter
.750"
25
item
Threaded
Yes
18
item
No
1
item
Thread Pitch
1/2x28 (.22 cal)
33
item
5/8x24 (.30 cal)
1
item
Inside Diameter
1.3"
1
item
Product Type
AR-15 Complete Upper Receiver
27
item
AR-15 Partial Upper Receiver
23
item
AR-15 Handguard
1
item
AR-15 Stripped Upper Receiver
1
item
AR-15 Upper Receiver Group
1
item
Chassis
1
item
Complete Upper
5
item
Model
Sig MCX
1
item
Platform
AR-15
19
item
Sig Sauer
1
item
Color
Finish
Arid
1
item
Black
1
item
Cerakote
1
item
Anodize
4
item
Barrel Profile
Non-fluted
2
item
Barrel Length
5.5"
4
item
7"
1
item
8.5"
2
item
10.3"
8
item
10.5"
8
item
11.5"
5
item
12"
1
item
12.5"
3
item
13"
1
item
13.7"
5
item
14.5"
9
item
16"
16
item
18"
2
item
Gas System Length
Pistol
1
item
Carbine
12
item
Mid
23
item
Rifle
1
item
Size
5 Slot
1
item
Mount
M-LOK
20
item
Picatinny
1
item
Price
$0.00
-
$999.99
35
item
$1,000.00
-
$1,999.99
21
item
$2,000.00
and above
3
item
Rail Length
7"
1
item
9"
1
item
9.2"
1
item
9.5"
3
item
9.55"
3
item
9.75"
1
item
10"
1
item
10.5"
2
item
10.7"
2
item
11"
1
item
11.5"
1
item
11.7"
2
item
12.5"
2
item
12.6"
1
item
13"
3
item
13.5"
1
item
13.7"
2
item
15"
13
item
16"
1
item
Height
Absolute Co-Witness
1
item
Configuration
M-LOK
1
item
Option
AR-15
4
item
Manufacturer
Aero Precision
1
item
Andro Corp Industries
1
item
Bootleg
1
item
Bravo Company MFG (BCM)
8
item
Centurion Arms
1
item
Daniel Defense
5
item
Magpul Industries
1
item
Maxim Defense
9
item
Noveske
5
item
Q, LLC
1
item
Rainier Arms, LLC
10
item
Sharps Bros
1
item
Sig Sauer
1
item
Sionics Weapon Systems
2
item
Sons of Liberty Gun Works
10
item
Tactical Edge Arms
1
item
VKTR Industries
1
item
Twist Rate
1:7
25
item
1:8
2
item
Clear All