Loading Gun Wise

[SYS.ONLINE]Mattoon, Illinois - Mission Ready

Parts & Accessories

Loading...

Loading...

Mission-ready firearms, ammunition, optics, and range gear for responsible owners who value precision and performance.

Loading...

© 2026 GUN WISE. ALL RIGHTS RESERVED.

ALL FIREARM SALES ARE SUBJECT TO FEDERAL, STATE, AND LOCAL LAW.

[SYS.ONLINE]Mattoon, Illinois - Mission Ready

Parts & Accessories

Home
Parts & Accessories
A4 Complete Upper Receiver Assembly

Loading...

Price

$2,649.00

A4 Complete Upper Receiver Assembly

HK

HK 51001892 MR762 A4 16 UPPER REC KIT 5/8X24Full description

HK 51001892 MR762 A4 16 UPPER REC KIT 5/8X24

Loading...

Technical specifications

MPN: 51001892
UPC: 642230274365
Brand: HK
Action: 7.62x51mm
Barrel length: 16"

Pricing

$2,649.00

Loading...

Shop

Firearms
Ammunition
Optics & Sights
Shooting Accessories
Featured Products

Support

Shipping & Returns
Contact Us
My Account
Order History
Cart

Company

About Us
Privacy Policy
Terms & Conditions
Gift Certificate Inquiries

HK 51001892 A4 Complete Upper Receiver Assembly 7.62x51mm Cold Hammer Forged Steel 16"

HK 51001892 A4 Complete Upper Receiver Assembly 7.62x51mm Cold Hammer Forged Steel 16"

8 available

Similar products

Closest matches by brand, type, and specifications.

Loading...

In stock

HK 51001919 A4 Complete Upper Receiver Assembly 7.62x51mm Cold Hammer Forged Steel 13"

HK 51001919 A4 Complete Upper Receiver Assembly 7.62x51mm…

MPN: 51001919
UPC: 642230272545

$2,649.00

Best Price In Cart

Add to cart for best price

Out of stock

Gun Wise product image unavailable

HK UPPER RECEIVER KIT MR556 A4 14.5 TB SBR

MPN: Not listed
UPC: 642230274167

$2,179.00

Best Price In Cart

Add to cart for best price

Out of stock

HK 51000385 MR556 Upper Receiver Kit 5.56mm for AR15/M16/M4

HK 51000385 MR556 Upper Receiver Kit 5.56mm for AR15/M16/M4

MPN: 51000385
UPC: 642230270220

$2,179.00

Best Price In Cart

Add to cart for best price

Out of stock

HK MR556 UPPER RECEIVER KIT 9 MRS HANDGUARD

HK MR556 UPPER RECEIVER KIT 9 MRS HANDGUARD

MPN: Not listed
UPC: 642230259300

$1,663.95

Out of stock

Out of stock

HK 51000384 MR556 Upper Receiver Kit 5.56mm for AR15/M16/M4

HK 51000384 MR556 Upper Receiver Kit 5.56mm for AR15/M16/M4

MPN: 51000384
UPC: 642230270213

$2,179.00

Best Price In Cart

Add to cart for best price

Out of stock

Aim Sports AR5CUB3 Complete Upper Assembly 5.56x45mm NATO 16" Black Nitride Barrel 7075-T6 Aluminum Black Hard Coat Anodized Receiver 15" M-LOK Free-Float Handguard for AR-15

Aim Sports AR5CUB3 Complete Upper Assembly 5.56x45mm NATO…

MPN: AR5CUB3
UPC: 815879019738

$359.99

Best Price In Cart

Add to cart for best price

In stock

TacFire BU30816 Rifle Upper Assembly 308 Win Caliber with 16" Black Nitride Barrel, Black Anodized 7075-T6 Aluminum Receiver & M-LOK Handguard for AR-Platform Includes Bolt Carrier Group

TacFire BU30816 Rifle Upper Assembly 308 Win Caliber…

MPN: BU30816
UPC: 729205512087

$415.65

Ready to ship

In stock

TacFire BU-300-16 Rifle Upper Assembly 300 Blackout Caliber 16" Black Nitride Barrel, Black Anodized 7075-T6 Aluminum Receiver & M-LOK Handguard for AR-Platform Includes Bolt Carrier Group

TacFire BU-300-16 Rifle Upper Assembly 300 Blackout Caliber…

MPN: BU30016
UPC: 729205501050

$280.78

Ready to ship