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MR556 Lower Receiver

HK MR556 Lower Receiver

Genuine Heckler & Koch

  • MR556 Trigger Pack
  • Milspec buffer tube assembly
  • E1 Retractable Stock
  • Battle Grip

Perfect For your HK 416 upper kit or the MR556 upper kit. Any mil-spec AR-15 upper will fit on this lower receiver assembly. Only a couple available and a rare find.

This item does not include buffer or buffer spring.


SKU: HKNAMRLOW
Origin: German
Condition: New
Caliber: 5.56 x 45mm
Simple Transfer Requirements
Availability: Currently Out of Stock
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MR556 Lower Receiver
MR556 Lower Receiver
MR556 Lower Receiver
MR556 Lower Receiver
MR556 Lower Receiver
MR556 Lower Receiver
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"MR556 A1 Lower"

Bryan on 4/2/2012 8:47:24 PM

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Comments and Suggestions: First, let me say that Adam and HKParts gets 5 stars for their service and ability to get hard to find parts. The MR556 A1 lower is overall a great item to build around; very tight tolerances and quality to spare. However, HK fell short on their two-stage trigger; very spongy second stage disappoints. I guess I've become accustomed to custom triggers where HK was more than likely trying to offer something better than the typical military style single-stage. I wouldn't let the trigger dissuade yo... More details


"mr556 LOWER"

HERB KIEMBOCK on 12/29/2011 3:44:07 AM

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Comments and Suggestions: GREAT EXPERIENCE,FAST SERVICE,HAD IT 3 DAYS LATER.THANKS HKPARTS


"HKParts.net"

James M. on 9/2/2011 1:38:51 PM

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Comments and Suggestions: HKParts.net is the only place to shop for all things HK. The difficulty of finding anything HK is hard; but Adam and his Co. are one of the very few merchants who strive to offer HK products to the general public with great CS and reasonable pricing. Thx Again Adam.