Free Shipping on Orders $60+

Free Shipping on Orders $60+

Product was added to your cart

Fast Shipping

Satisfaction Guaranteed

First Responder Discounts

5.56 Caliber

Shop a Variety of Barrels, Muzzle Devices, Upper Receivers, Parts and more for your 5.56 Caliber AR-15

Showing 1–16 of 107 results

Sale!
AR-15 Pistol Upper with Carbine Quad Rail 5.56 Caliber
Rated 5.00 out of 5
~~$299.99~~ $199.95
Add to cart
Sale!
AR-15 5.56 Complete Red Rifle Upper Receiver “DIRTY DEVIL”
Rated 5.00 out of 5
$349.95 – $359.95
Select options
Sale!
AR-15 5.56 Rifle Upper Receiver Set “Trump MAGA” Limited Edition in Red, Black, or Blue
Rated 5.00 out of 5
$499.95 – $529.95
Select options
Sale!
AR-15 Blue 5.56 Complete Rifle Upper Receiver “ARCHANGEL”
Rated 5.00 out of 5
$449.95 – $459.95
Select options
Sale!
AR-15 Stripped Billet Upper Receiver in Multiple Color Options
$84.95 – $149.95
Select options
Sale!
AR-15 5.56 Upper with 15 inch Octagonal KeyMod Or M-LOK Slim profile and Match Grade Barrel with Color Options
Rated 5.00 out of 5
$349.95 – $379.95
Select options
AR-15 Ejection Port Dust Cover in Black or Red
$10.95 – $16.95
Select options
Sale!
AR-15 5.56 Complete California Legal Upper Receiver
Rated 4.00 out of 5
$369.95 – $389.95
Select options
Sale!
AR-15 Pistol Upper 5.56 “Dirty Devil” RIP Series
~~$529.95~~ $429.95
Add to cart
AR-15 Pistol Upper 5.56 9 inch KeyMod or M-LOK Slim Profile RIP Series Black
Rated 5.00 out of 5
$349.95 – $389.95
Select options
Sale!
AR-15 Pistol Upper With 7 Inch KeyMod Handguard
~~$299.99~~ $199.95
Add to cart
Sale!
AR-15 Upper Receiver In 5.56 “Grunt Series” Mod-2
Rated 5.00 out of 5
~~$369.95~~ $199.95
Add to cart
Sale!
AR-15 5.56 Rifle Upper Undead Zombie Green Series
~~$599.99~~ $519.95
Add to cart
Sale!
AR-15 5.56 Custom Upper – Night Hawk 16″
~~$454.95~~ $399.95
Add to cart
Sale!
7.5 inch 5.56 AR-15 Pistol Barrel Nitride
~~$119.95~~ $79.95
Add to cart
Sale!
AR-15 10.5 Inch Upper Assembly with 10 Inch M-LOK and MCBS
~~$539.95~~ $409.95
Add to cart