UPDATED / ADDED: MP5 HOST + QUALIFIED MFG HK SEAR IN 4-POSITION PACK - STANDARD & "K" LOWERS INCLUDED

[hkg3k]

FOR SALE -MP5 Host + Qualified Mfg (Broken Arrow, OK) Transferable HK F/A Sear in 4-position (3rd Burst) Pack...pack converted by legendary HK Smith Terry Dyer.  See Pics

This HK sear and pack are in Excellent (+) condition with low mileage and has worked perfectly with every receiver combination in which it's been installed.

In addition to the new C/P 4-position standard (9x shelf) lower, I also include a new C/P "K" (9x shelf) lower...these will have you covered for all (9x shelf) HKs with the exception of the "e" belt fed guns.  Note:  I also have new 4-position lowers (standard & "K") cut to the new HK shelf dimensions.

This HK Sear package  is on Form 4 in TN - $53K (Sear pkg only) -or- $57K (Host + Sear pkg) **SEE BELOW POST** OBO shipped to your dealer.  i.e. I will pay 1st tax and shipping / insurance to your dealer

This HK Sear will ship in a new hard case as pictured.

PM if interested.  I'm happy to  provide both proof of life and references.

 

 

Edited July 27 by hkg3k

[hkg3k]

For further consideration and offering is a (pre-89 HK94) MP5 host converted by legendary builder F.J. Vollmer (see pics).  This MP5 host was originally married to the Qualified Manf. HK registered sear listed above and the Qualified Manf. sear serial # is so-marked on the magazine well, as was the norm of the time.  

This host is in a Title 1 configuration and "divorced" from the Qualified Manf. sear by means of the addition of a lightweight 3-lug "permanently" attached fake suppressor...bringing the overall bbl length >16".  This fake suppressor is gunsmith removal friendly, and reveals a German 3-lug barrel underneath, making it extremely easy for the owner to SBR (no 922r) this host if they so desire.

This host is ALL German and coded as follows:
Receiver - serial # indicates 1986 production (IG)
3-lug Barrel - IG date code
Bolt / Bolt Carrier - both ID date coded
Buttstock - IJ date code
Forearm - no date code (normal)

This MP5 host is in excellent cosmetic and functional condition, though as you might expect from a host converted over 30years ago, it does have a small amount of honest wear and rack rash in one or two places.

As stated above, I'm willing to sell together or separate, but if separate, the sear will need to sell first.

Edited July 28 by hkg3k

[hkg3k]

BTT

[ZBrown]

I'm not sure of the legalities since the ATF likes to change laws all whilly-nilly, but i'd be interested in that host if you sell the sear separately.

What change in policy am I missing that enables this sear to be separated from it's host and still be good for something?

[hkg3k]

19 hours ago, ZBrown said:

I'm not sure of the legalities since the ATF likes to change laws all whilly-nilly, but i'd be interested in that host if you sell the sear separately.

Thank you for your interest in my F.J. Vollmer built host.  This host is currently configured as a Title 1 firearm, no different that any other long arm with >16" bbl.  No "whilly-nilly" possible.  The buyer of the sear will have Right of 1st Refusal on the host.

19 hours ago, ZBrown said:

What change in policy am I missing that enables this sear to be separated from it's host and still be good for something?

The policy has always been the same.  If the sear is the registered part, as this one is, (see above redacted Form 4) it is portable to move to any other host.  The caveat is that you can't orphan an unregistered SBR when the sear moves.  I opted to configured my original host as a Title 1 firearm, as opposed to registering it as a SBR.

I hope that answers your questions.

[ZBrown]

I guess my more accurate question would be- How were you able to divorce a sear that was married to a host, without rendering the sear inoperable?

Let me know if/when you're interested in selling the host. 

[JoshNC]

3 hours ago, ZBrown said:

I guess my more accurate question would be- How were you able to divorce a sear that was married to a host, without rendering the sear inoperable?

Let me know if/when you're interested in selling the host. 

@hkg3k fully answered your question in his reply immediately above yours. A sear and host may be divorced if the host is registered as an SBR.  There were some hosts done by Vollmer that had the front pushpin drilled, making the host a MG by ATF’s definition. The sear cannot be divorced from the host without adding the semiautomatic shelf to the host or destroying the host. This is not that scenario. 
 

Also, how would divorce of a sear from a host render the sear inoperable?

Edited August 28 by JoshNC

[hkg3k]

On 8/28/2025 at 7:59 AM, ZBrown said:

I guess my more accurate question would be- How were you able to divorce a sear that was married to a host, without rendering the sear inoperable?

If you're familiar with the components and mechanics of HK F/A fire control, then you're also aware that those fire control parts are contained inside the "trigger box" which itself, sits in the lower grip frame...and the trigger box would include the registered conversion sear (like the Qual Manf registered sear I have for sale) and the subject of your question.

Removing the lower grip frame assembly from an HK machine gun (which contains the trigger box & registered F/A sear) in order to install it onto another host does nothing to render that sear "inoperable"...in either a physical -or- legal sense.  

The only mechanical requirement of each host is that it have a full-auto spec bolt carrier.  That registered HK conversion sears have this "portability" to other HK hosts is directly related to their market value / pricing.  

On 8/28/2025 at 7:59 AM, ZBrown said:

Let me know if/when you're interested in selling the host. 

Will do...