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5.56 Nato Complete Uppers

Ar15 5.56 Nato Complete Uppers – B. King’s Firearms

Showing all 103 results

Replace .750 Low Profile Gas Block W/ BKF Adjustable Gas Block
Rated 5.00 out of 5
~~$49.99~~ $24.99
Out of stock
Pin & Weld Flash hider/Brake
~~$42.50~~ $30.00
89 in stock
ADD Custom Single Color Cerakote – 1 piece
Rated 4.91 out of 5
~~$75.00~~ $35.00
18 in stock
Aero Precision M4E1 Threaded Upper Receiver UPGRADE
Rated 5.00 out of 5
$40.00
25 in stock
ADD Custom Single Color Cerakote – 2 pieces
~~$100.00~~ $65.00
21 in stock
ADD AR15 Toolcraft 556/300 BLK BCG and Charging Handle – Black Nitride
Rated 5.00 out of 5
$99.99
Out of stock
BKF AR15 556 Nato Complete Upper 16″ Mid Length 1/7 Twist W/ Pin FSB and M4 Hanguard
Rated 5.00 out of 5
~~$299.99~~ $149.99
Out of stock
BKF AR15 556 Nato Complete Upper 16″ 1/7 Twist Carbine Length W/ Pin FSB and M4 Hanguard
Rated 5.00 out of 5
~~$299.99~~ $149.99
Out of stock
BKF AR15 7.5″ 5.56 Nato 1/7 Twist 4150 Steel Barrel W/ 5.5″ Slim Hybrid M-LOK Rail
~~$244.99~~ $164.99
4 in stock
BKF AR15 7.5″ 5.56 Nato 1/7 Twist 4150 Steel Barrel W/ 7.25″ Slim M-LOK Rail W/ KAK Micro Flash Can
~~$254.99~~ $179.99
Out of stock
BKF AR15 10.5″ Govt 556 Nato Carbine length 1/7 Twist Barrel W/ 9.875″ FFSSR M-LOK Handguard
~~$259.99~~ $194.99
2 in stock
BKF AR15 7.5″ 5.56 Nato 1/7 Twist 4150 Steel Barrel W/ 9.25″ Slim M-LOK Rail W/ KAK Flash Can
~~$259.99~~ $199.99
Out of stock
BKF AR15 7.5″ 5.56 Nato 1/7 Twist 4150 Steel Barrel W/ 9.25″ Slim M-LOK Rail W/ KAK Flash Can
Rated 5.00 out of 5
~~$259.99~~ $199.99
20 in stock
BKF AR15 DRP 7.5″ 556 Nato Pistol length 1/7 Twist Barrel W/ 7.25″ Slim M-LOK Handguard (Ballistic Advantage)
Rated 5.00 out of 5
~~$289.99~~ $219.99
5 in stock
BKF AR15 DRP 8″ 556 Nato Pistol length 1/7 Twist Barrel W/ 7.25″ Slim M-LOK Handguard (Ballistic Advantage)
~~$289.99~~ $219.99
9 in stock
BKF AR15 16″ 556 Nato Carbine length Govt 1/7 Twist 4150 Barrel W/ 15.5″ Slim FFSSR M-LOK Rail
Rated 5.00 out of 5
~~$309.99~~ $219.99
3 in stock
BKF AR15 8″ 556 Nato Pistol length 1/7 Twist Barrel w/ 7.25″ Slim Hybrid M-LOK Handguard (Ballistic Advantage)
~~$329.99~~ $219.99
10 in stock
BKF AR15 10.5″ 556 Govt Nato Carbine length 1/7 Twist Barrel W/ 9.25″ Slim M-LOK Handguard (Ballistic Advantage)
Rated 5.00 out of 5
~~$299.99~~ $224.99
5 in stock
BKF AR15 16″ 556 Nato Govt 1/7 Twist 4150 Barrel W/ 15.5″ Slim FFSSR M-LOK Rail
Rated 5.00 out of 5
~~$309.99~~ $224.99
Out of stock
BKF AR15 10.5″ 5.56 Nato Govt 1/7 Twist 4150 Steel Barrel W/ 11.5″ FFSSR M-LOK Rail W/ KAK Flash Can
~~$269.99~~ $224.99
14 in stock
BKF AR15 16″ 556 Nato Govt 1/7 Twist 4150 Slim .625 Barrel W/ 13.5″ Slim FFSSR M-LOK Rail
~~$309.99~~ $229.99
Out of stock
BKF AR15 7.5″ 556 Nato Govt 1/7 Twist Barrel W/ 9.25″ Slim M-LOK Rail W/ KAK Flash Can (Ballistic Advantage)
~~$299.99~~ $232.99
4 in stock
BKF AR15 8″ 556 Nato 1/7 Twist 4150 Barrel W/ 9.25″ Slim M-LOK Rail W/ KAK Flash Can (Ballistic Advantage)
~~$309.99~~ $232.99
1 in stock
BKF AR15 11.5″ Govt 556 Nato Carbine length 1/7 Twist Barrel 9.25″ Slim M-LOK Handguard (Ballistic Advantage)
~~$329.99~~ $234.99
3 in stock
BKF AR15 16″ 556 Nato Govt 1/7 Twist 4150 Barrel W/ 17.5″ Slim FFSSR M-LOK Rail W/ KAK Flash Can
Rated 5.00 out of 5
~~$319.99~~ $239.99
Out of stock
BKF AR15 Govt 12.5″ 556 Nato Carbine length 1/7 Twist Barrel W/ 11.625″ Slim M-LOK Handguard (Ballistic Advantage)
~~$299.99~~ $244.99
2 in stock
BKF AR15 11.5″ 556 Nato 1/7 Twist QPQ Barrel W/ 11.625″ Slim M-LOK Rail W/ KAK Micro Flash Can (Ballistic Advantage)
~~$349.99~~ $249.99
2 in stock
BKF AR15 16″ Govt 556 Nato Mid length 1/7 Twist Barrel W/ 15.5″ Slim M-LOK FFSSR Handguard (Ballistic Advantage) BLEM FDE Cerakote
~~$374.99~~ $250.00
10 in stock
Rosco AR15 16″ 556 Nato 1/7 Twist Barrel W/ 13.5″ Slim FFSSR M-LOK Rail
~~$399.99~~ $254.99
Out of stock
BKF AR15 11.5″ Govt 556 Nato Carbine length 1/7 Twist Barrel 9.875″ FFSSR M-LOK Handguard (Ballistic Advantage)
~~$314.99~~ $254.99
2 in stock
BKF AR15 10.5″ Govt 556 Nato Carbine length 1/7 Twist Barrel 9.875″ FFSSR M-LOK Handguard (Ballistic Advantage)
Rated 5.00 out of 5
~~$314.99~~ $254.99
3 in stock
BKF AR15 10.5″ 556 Nato 1/7 Twist QPQ Barrel W/ 11.625″ Slim M-LOK Rail W/ KAK Flash Can (Ballistic Advantage)
~~$319.99~~ $254.99
4 in stock
BKF AR15 Govt 12.5″ 556 Nato Carbine length 1/7 Twist Barrel W/ 11.5″ FFSSR M-LOK Handguard (Ballistic Advantage)
Rated 5.00 out of 5
~~$319.99~~ $259.99
6 in stock
BKF AR15 Govt 12.5″ 556 Nato Carbine length 1/7 Twist Barrel W/ 13.5″ Slim M-LOK Rail W/ KAK Flash Can (Ballistic Advantage)
~~$319.99~~ $259.99
3 in stock
BKF AR15 14.5″ Govt 556 Nato Mid length 1/7 Twist Barrel W/ 13.5″ Slim FFSSR M-LOK Handguard (Ballistic Advantage)
Rated 5.00 out of 5
~~$329.99~~ $262.99
Out of stock
BKF AR15 16″ Govt 556 Nato Mid length 1/7 Twist Barrel W/ 15.5″ Slim M-LOK FFSSR Handguard (Ballistic Advantage)
Rated 5.00 out of 5
~~$324.99~~ $269.99
6 in stock
BKF AR15 11.5″ 556 Nato 1/7 Twist QPQ Barrel W/ 11.5″ FFSSR M-LOK Rail W/ KAK Micro Flash Can (Ballistic Advantage)
~~$349.99~~ $269.99
4 in stock
BKF AR15 10.5″ 556 Nato 1/7 Twist QPQ Barrel W/ 11.5″ FFSSR M-LOK Rail W/ KAK Flash Can (Ballistic Advantage)
Rated 5.00 out of 5
~~$319.99~~ $274.99
4 in stock
BKF AR15 Govt 12.5″ 556 Nato Carbine length 1/7 Twist Barrel W/ 13.5″ Slim FFSSR M-LOK Rail W/ KAK Flash Can (Ballistic Advantage)
~~$339.99~~ $274.99
Out of stock
Rosco AR15 16″ 556 Nato 1/7 Twist Chrome Lined Barrel W/ 13.5″ Slim FFSSR M-LOK Rail
Rated 5.00 out of 5
~~$399.99~~ $289.99
Out of stock
BKF AR15 16″ 556 Nato Mid length 1/8 Twist Gunner Barrel W/ 13.5″ Slim M-LOK Handguard (Faxon)
~~$324.99~~ $289.99
1 in stock
BKF AR15 11.5″ 556 Nato 1/8 Twist QPQ GUNNER Barrel W/ 11.5″ FFSSR M-LOK Rail W/ KAK Mirco Flash Can (Faxon)
Rated 5.00 out of 5
~~$349.99~~ $299.99
1 in stock
BKF AR15 18″ 556 Nato Rifle length 1/8 Twist Gunner Barrel W/ 15″ Slim M-LOK Handguard (Faxon)
~~$349.99~~ $305.99
1 in stock
BKF AR15 20″ Govt 556 Nato Rifle length 1/7 Twist Nitride Barrel W/ 17.5″ Slim FFSSR M-LOK Handguard
Rated 5.00 out of 5
$319.99
Out of stock
BKF AR15 20″ 556 Nato Rifle length 1/8 Twist Gunner Barrel W/ 15″ Slim M-LOK Handguard (Faxon)
~~$379.99~~ $319.99
1 in stock
Aero Precision AR15 M4E1 Build W/ Ballistic Advantage Govt 16″ 556 Nato Mid length 1/7 Twist Barrel
Rated 5.00 out of 5
$325.00
4 in stock
Aero Precision AR15 M4E1 Build W/ Ballistic Advantage Govt 14.5″ 556 Nato Mid length 1/7 Twist Barrel
Rated 5.00 out of 5
$325.00
Out of stock
Aero Precision 556 Nato AR15 Complete Upper 16″ Carbine Length W/ Pin FSB and M4 Hanguard
$329.99
Out of stock
BKF AR15 18″ SPR 556 Nato Rifle length 1/7 Twist Barrel W/ 17.5″ Slim FFSSR M-LOK Handguard (Ballistic Advantage)
Rated 5.00 out of 5
$349.00
3 in stock
Aero Precision 556 Nato AR15 Complete Upper 16″ Mid Length W/ Pin FSB and M4 Hanguard
$349.99
Out of stock
BKF AR15 14.5″ 556 Nato Gunner Mid length 1/8 Twist W/ 13.5″ Slim FFSSR M-LOK (pinned and welded slim brake) (Faxon)
~~$439.99~~ $349.99
Out of stock
BKF AR15 20″ Govt 556 Nato Rifle length 1/7 Twist Barrel W/ 17.5″ Slim FFSSR M-LOK Handguard (Ballistic Advantage)
$359.00
1 in stock
Aero Precision AR15 M4E1 Enhanced Upper and Handguard Build W/ Ballistic Advantage BA Hanson 10.3″ 556 Nato Carbine length 1/7 Twist Barrel
$360.00
Out of stock
BKF AR15 Govt 12.5″ 556 Nato Carbine length 1/7 Twist Barrel W/ 11.5″ Slim FFSSR M-LOK Handguard (Ballistic Advantage) BLEM FDE Cerakote
Rated 5.00 out of 5
$369.99
8 in stock
BKF AR15 10.5″ Govt 556 Nato Carbine length 1/7 Twist Barrel 9.875″ FFSSR M-LOK Handguard (Ballistic Advantage) BLEM FDE Cerakote
$369.99
10 in stock
AR15 M4E1 Build W/ BA Govt 8″ 556 Nato 1/7 Twist – 7″ Atlas S-One M-Lok
$389.99
5 in stock
10% OFF IN CART
10% off (Monthly and Holiday Discounts)

10% off any AR15 Complete Lower and AR15 Barrel when purchased together
Luth AR 16″ 556nato Lightweight Barrel Complete Upper Receiver W- BCG and CH
$399.95
35 in stock
AR15 M4E1 Build W/ BA Govt 10.5″ 556 Nato 1/7 Twist – 9″ Atlas R-One M-Lok
Rated 5.00 out of 5
$399.99
3 in stock
AR15 M4E1 Build W/ BA Govt 10.5″ 556 Nato 1/7 Twist – 9″ Atlas S-One M-Lok
Rated 5.00 out of 5
$399.99
3 in stock
AR15 M4E1 Build W/ BA Govt 11.5″ 556 Nato 1/7 Twist – 9″ Atlas R-One M-Lok
Rated 5.00 out of 5
$399.99
3 in stock
AR15 M4E1 Build W/ BA Govt 11.5″ 556 Nato 1/7 Twist – 9″ Atlas S-One M-Lok
$399.99
3 in stock
AR15 M4E1 Build W/ BA Govt 14.5″ 556 Nato 1/7 Twist – 12″ Atlas R-One M-Lok
$399.99
Out of stock
AR15 M4E1 Build W/ BA Govt 14.5″ 556 Nato 1/7 Twist – 12″ Atlas S-One M-Lok
$399.99
Out of stock
AR15 M4E1 Build W/ BA Govt 16″ 556 Nato 1/7 Twist – 15″ Atlas R-One M-Lok
Rated 5.00 out of 5
$399.99
1 in stock
AR15 M4E1 Build W/ BA Govt 16″ 556 Nato 1/7 Twist – 15″ Atlas S-One M-Lok
$399.99
2 in stock
Aero Precision AR15 M4E1 Build W/ Ballistic Advantage BA Hanson 16″ 556 Nato Mid length 1/7 Twist Barrel
Rated 5.00 out of 5
$405.00
Out of stock
10% OFF IN CART
10% off (Monthly and Holiday Discounts)

10% off any AR15 Complete Lower and AR15 Barrel when purchased together
Cmmg Upper 556nato M4 Carb 16″ A2 Fh
$437.49
Out of stock
10% OFF IN CART
10% off (Monthly and Holiday Discounts)

10% off any AR15 Complete Lower and AR15 Barrel when purchased together
Luth AR 16″ 556 Nato Bull Barrel Complete Upper Receiver W- BCG and CH
$484.95
41 in stock
10% OFF IN CART
10% off (Monthly and Holiday Discounts)

10% off any AR15 Complete Lower and AR15 Barrel when purchased together
Luth AR 18″ 556 NatoBull Barrel Complete Upper Receiver W- BCG and CH
$489.95
27 in stock
10% OFF IN CART
10% off (Monthly and Holiday Discounts)

10% off any AR15 Complete Lower and AR15 Barrel when purchased together
Luth AR 20″ 556 Nato Bull Barrel Complete Upper Receiver W- BCG and CH
$494.95
17 in stock
10% OFF IN CART
10% off (Monthly and Holiday Discounts)

10% off any AR15 Complete Lower and AR15 Barrel when purchased together
Luth AR 24″ 556 Nato Bull Barrel Complete Upper Receiver W- BCG and CH
$499.95
7 in stock
10% OFF IN CART
10% off (Monthly and Holiday Discounts)

10% off any AR15 Complete Lower and AR15 Barrel when purchased together
Spike’s 556nato M4 Le Upper 16″ Black
$543.75
30 in stock
10% OFF IN CART
10% off (Monthly and Holiday Discounts)

10% off any AR15 Complete Lower and AR15 Barrel when purchased together
Spike’s 556 Mid Le Upper 16″ Fsp Black
$553.13
10 in stock
10% OFF IN CART
10% off (Monthly and Holiday Discounts)

10% off any AR15 Complete Lower and AR15 Barrel when purchased together
Troy Gau Upper 12.25″ 5.56 Black
$570.85
14 in stock
Black Rain Spec15 Upper 10.5″ 556 nato Black
$624.99
Out of stock
10% OFF IN CART
10% off (Monthly and Holiday Discounts)

10% off any AR15 Complete Lower and AR15 Barrel when purchased together
Spike’s 556nato Upper 16″ Chf-fsp
$637.50
10 in stock
Zev Core Forged Upper 556 nato 16″ Black
$699.99
Out of stock
10% OFF IN CART
10% off (Monthly and Holiday Discounts)

10% off any AR15 Complete Lower and AR15 Barrel when purchased together
Spike’s 556nato M4 Le Upper W-rail
$730.31
Out of stock
Black Rain Spec15 Upper 16″ 556 Socom
$736.25
9 in stock
Colt M4 Upper 5.56 16.1″ Black
$748.75
8 in stock
Colt Le6921 Upper 556nato 14.5″
$748.75
Out of stock
10% OFF IN CART
10% off (Monthly and Holiday Discounts)

10% off any AR15 Complete Lower and AR15 Barrel when purchased together
Yhm Specter Xl Black Diamond Carbine upper 556 16″
$837.49
Out of stock
Zev Core Forged Upper 556 nato 10.5″ Black
$850.25
Out of stock
Colt Le6944 Upper 556nato 14.5″
$950.00
Out of stock
10% OFF IN CART
10% off (Monthly and Holiday Discounts)

10% off any AR15 Complete Lower and AR15 Barrel when purchased together
Spike’s 556 Upper 14.5″pb Rail-dyn
$977.81
Out of stock
10% OFF IN CART
10% off (Monthly and Holiday Discounts)

10% off any AR15 Complete Lower and AR15 Barrel when purchased together
Daniel Defense M4v7s Upper Urg 11.5″ 556nato
$1,016.25
17 in stock
10% OFF IN CART
10% off (Monthly and Holiday Discounts)

10% off any AR15 Complete Lower and AR15 Barrel when purchased together
Daniel Defense M4v7 Upper 556 16″ Mlok Black
$1,016.25
21 in stock
10% OFF IN CART
10% off (Monthly and Holiday Discounts)

10% off any AR15 Complete Lower and AR15 Barrel when purchased together
Daniel Defense M4v11 Lw Upper Urg 16″ 556nato
$1,016.25
14 in stock
10% OFF IN CART
10% off (Monthly and Holiday Discounts)

10% off any AR15 Complete Lower and AR15 Barrel when purchased together
Daniel Defense M4v11 Upper Urg 16″ 556nato
$1,016.25
6 in stock
Phase5 Mlok complete Upper 556 16″ Black
$1,049.00
Out of stock
Colt Le6943 Upper 556nato 11.5″
$1,098.75
Out of stock
10% OFF IN CART
10% off (Monthly and Holiday Discounts)

10% off any AR15 Complete Lower and AR15 Barrel when purchased together
Daniel Defense M4 V9 Upper Urg 16″ 556nato 15.0
$1,109.00
7 in stock
10% OFF IN CART
10% off (Monthly and Holiday Discounts)

10% off any AR15 Complete Lower and AR15 Barrel when purchased together
Daniel Defense Mk18 Urg Upper 556 10.3″ Black
$1,180.00
20 in stock
10% OFF IN CART
10% off (Monthly and Holiday Discounts)

10% off any AR15 Complete Lower and AR15 Barrel when purchased together
Daniel Defense Mk18 Urg Upper 556 10.3″ Fde
$1,180.00
27 in stock
10% OFF IN CART
10% off (Monthly and Holiday Discounts)

10% off any AR15 Complete Lower and AR15 Barrel when purchased together
2a Upper 556nato 10.5″ M-lok Rail
$1,201.58
Out of stock
10% OFF IN CART
10% off (Monthly and Holiday Discounts)

10% off any AR15 Complete Lower and AR15 Barrel when purchased together
2a Upper 556nato 16″ M-lok Rail Black
$1,201.58
Out of stock
10% OFF IN CART
10% off (Monthly and Holiday Discounts)

10% off any AR15 Complete Lower and AR15 Barrel when purchased together
2a Upper 556nato 7.5″ M-lok Rail Black
$1,201.58
Out of stock
10% OFF IN CART
10% off (Monthly and Holiday Discounts)

10% off any AR15 Complete Lower and AR15 Barrel when purchased together
Daniel Defense M4a1 Upper Urg 14.5″pb 556 Fde
$1,252.50
2 in stock
Zev Ar15 Billet Upper 3g 556 18″ Black
$1,353.75
Out of stock
Kac Upper Rcvr Sr-15 E3 16 Urx4 Mlok
$1,713.60
4 in stock
Kac Upper Receiver Sr-15 Carbine 14.5″ Urx4 556 Nato
$1,776.60
9 in stock
Kac Upper Receiver Sr-15 Carbine 14.5″ Mlok 556 Nato
$1,776.60
Out of stock
Kac Upper Receiver Sr-15 Cqb 11.5″ Mlok 556 Nato
$1,776.60
Out of stock

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Privacy Policy:

B .King's Firearms, Training and Retail LLC is a registered business in state of Ohio. What follows is the online privacy policy of B .King's Firearms, Training and Retail LLC, which governs personal information gathered on its Internet site, www.bkingsfirearms.com, in general and other registration forms related to training classes and store purchased offered by B .King's Firearms, Training and Retail LLC, as may be included on our Internet site, specifically.

Commitment to Online Security:

Physical, electronic and managerial procedures have been employed to safeguard the security and integrity of all personal information. B .King's Firearms, Training and Retail LLC encrypts billing information wherever such information is requested. No agents or contractors of B .King's Firearms, Training and Retail LLC have access to personal information obtained on the B .King's Firearms, Training and Retail LLC Web site.

Personal information that B .King's Firearms, Training and Retail LLC may collect online:

B .King's Firearms, Training and Retail LLC collects personal information online, including, but not limited to, names, birth dates, driver’s license (or State issued identification) numbers, postal and e-mail addresses, phone numbers, and billing information. B .King's Firearms, Training and Retail LLC does not knowingly collect or maintain any personal information from children under the age of 17. In addition, no parts of our sites are designed with the purpose of attracting any person under the age of 17.

How B .King's Firearms, Training and Retail LLC Uses Personal Information Collected Online:

Unless you otherwise consent, we will use your personal information only for the purpose for which it is submitted, such as to reply to your emails and process billing requests related to services and products to which we provide.

At certain points where personal information is collected on our site, there may be a box where you may indicate you would like to be on a mailing list to receive information about B .King's Firearms, Training and Retail LLCother programs and services and articles of interest relating to firearms, shooting, or general products. At any time you can add or remove your name from a B .King's Firearms, Training and Retail LLClist by contacting us at:

[email protected]
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How Your Information May Be Shared:

We never sell or rent your personal information. B .King's Firearms, Training and Retail LLCmay, however, release personal information under the following circumstances:

Where release is required by law (for example, a subpoena) or regulation or is requested by a government agency;

Where our records indicate an individual may be engaged in fraudulent activity or other deceptive practices that a governmental agency should be made aware of;

To appropriate persons, where your communication suggests possible harm to others.

Computer Tracking and Cookies:

Our Web sites are not set up to track, collect or distribute personal information not entered by visitors. Our site logs do generate certain kinds of non-identifying site usage data, such as the number of hits and visits to our sites. This information is used for internal purposes by technical support staff to provide better services to the public and may also be provided to others, but again, the statistics contain no personal information and cannot be used to gather such information.

Problems or Complaints with B .King's Firearms, Training and Retail LLC Privacy Policy:

If you have a concern or complaint about B .King's Firearms, Training and Retail LLC compliance with this privacy policy, please direct it to [email protected]

RETURN POLICY:

There is a restocking fee of 8% if the order is cancelled and refunded to your CC or we can offer 100% in store credit. Once the item has left our store the restocking fee is 15%. For Refund you must pay the shipping back. Item's that are not 100% same condition will be reviewed by the Owner for refund % if we accept the return.

Our products are covered by manufactures warranties 100%, with that being said if we find you have a manufactures defect with your product you would contact them directly for repair or replacement. You have 7 days from when the product is delivered to your door or picked up from your FFL to report any defects or problems to us. IE...We will not except a return if you report a tiny scratch when your order was delivered two months earlier...

There will be a 30% restocking fee on all controlled items returned because of failed background checks.