maxfaxdude Posted January 20, 2025 Report Share Posted January 20, 2025 I had heard of a fully transferable PKM with registered trigger but never seen one until this just popped up on Gunbroker: https://www.gunbroker.com/item/1085298002 Does anyone have more info on these transferable triggers? Link to comment Share on other sites More sharing options...
1gewehr Posted January 20, 2025 Report Share Posted January 20, 2025 "The fully transferable part of this gun is the M11 .380 trigger" This sounds suspiciously like the people that took registered MAC10 receivers and transferred the serial numbers on to more valuable parts kits, making a new machine gun with a 'registered' serial number. I'd be VERY careful! 1 Link to comment Share on other sites More sharing options...
tricky9914 Posted January 20, 2025 Report Share Posted January 20, 2025 As stated, years ago someone removed serial numbers from MAC 10s and placed them into M60 receivers. Those were determined to be a "no-go" with the ATF. Also, I recall someone doing something similar with M249 kits which also lead to much debate (one of those M249s showed up on Sturmgewehr 4-5 years ago and the debate was heated). I would also be very very careful with this one. Link to comment Share on other sites More sharing options...
villafuego Posted January 20, 2025 Report Share Posted January 20, 2025 Those Broadhead Armory MAC triggers were purpose built, pre-86 conversion devices ......for the MAC family of firearms ......they dropped in to a semi open bolt MAC, and converted the gun to FA-only with no modification to the host firearm. The real issue would be, would their use be allowed in a completely different type of firearm? ........ You can't even use a reg. FNC sear in a SCAR....... 2nd question would be, remove that trigger and what do you have left? Is it a PKM capable of accepting an open bolt firing mechanism ? The registered trigger is the least "sketchy" aspect of this whole thing Link to comment Share on other sites More sharing options...
johnsonlmg41 Posted January 21, 2025 Report Share Posted January 21, 2025 (edited) edited Edited June 10, 2025 by johnsonlmg41 1 Link to comment Share on other sites More sharing options...
maxfaxdude Posted January 21, 2025 Author Report Share Posted January 21, 2025 The picture of ATF letter supplied by the seller in the GB auction makes it seem (al least to me) that these devices are legit. But...it does make me wary. And $150,000 is an awfully steep price! Link to comment Share on other sites More sharing options...
68coupe Posted January 21, 2025 Report Share Posted January 21, 2025 10 hours ago, maxfaxdude said: The picture of ATF letter supplied by the seller in the GB auction makes it seem (al least to me) that these devices are legit. But...it does make me wary. And $150,000 is an awfully steep price! Not "awfully steep", more in the realm of "ridiculous". But what do I know? I can barely afford eggs, milk and fuel for my car. Not LOL Karl, 68coupe 1 Link to comment Share on other sites More sharing options...
Don. Posted January 24, 2025 Report Share Posted January 24, 2025 On 1/21/2025 at 6:11 AM, 68coupe said: Not "awfully steep", more in the realm of "ridiculous". But what do I know? I can barely afford eggs, milk and fuel for my car. Not LOL Karl, 68coupe That’s a nice way to put it, lol! If it was half the cost, it would still be too good to be true.? Link to comment Share on other sites More sharing options...
WJP Posted February 1, 2025 Report Share Posted February 1, 2025 (edited) Personally you wouldn't catch me owning it. You would need illegal parts to get them to run the way the Wiselite designed them. Pretty much like having a closed bolt semi uzi and a registered trigger group. You would need to cut a slot in a factory open bolt to work with the registered trigger group. They have denials for the bolt, carrier, and the firing pin. If you pulled that trigger out and just dropped in the converted bolt and carrier it should just run away. Same as pulling out most open bolt guns triggers and racking the bolt. I'm not going to say it's illegal since I don't know the full conversion. However would you slot an uzi bolt to work with that trigger? Edited February 2, 2025 by WJP Link to comment Share on other sites More sharing options...
BRMCII Posted February 2, 2025 Report Share Posted February 2, 2025 If the seller is serious about ATF authorization of his legal use of the registered trigger, he would send a registered trigger and a semi-auto PK to Tech Branch for an evaluation of the potential use of the device for an approval for it's use in the PK application. If he sends the trigger and semi- PK he won't get in trouble for having created a post-May sample which they might not return. Let Tech look at it and decide what alterations are required, if any, and if the conversion would meet their legal requirements. They might ask for a converted example to evaluate which is riskier but the reward is substantial. His letter is an only a generic approval of the use of registered conversion devices in semi-autos and the legal requirements to do so, but it is NOT specifically for the PK. That is a huge leap of faith. I have a postie PK and have repaired a few so they are familiar but I don't have a semi so can't say anything about the trigger's use in one. My $.02...... Link to comment Share on other sites More sharing options...
WJP Posted February 3, 2025 Report Share Posted February 3, 2025 (edited) I just looked at the auction again and a semi in person. It almost appears that the lower denial was pulled out of that receiver. I would definitely ask what method was used and for pictures of the entire inside of the receiver without the carrier installed. Of course the listing says the denials are in place. Just seems a little off to me. Edited February 3, 2025 by WJP Link to comment Share on other sites More sharing options...
okrana Posted February 13, 2025 Report Share Posted February 13, 2025 It would seem that looking at the Form 3 the triggers are on would clarify a lot. IF the F3 says ...conversion device for MAC-10/11/etc firearms... then that settles it. If, on the other hand it simply states conversion device for machine guns without specifying WHAT gun they are for, it seems worthwhile to pursue it. Especially given the unavailability of transperables PK/PKMs. Okrana Link to comment Share on other sites More sharing options...
WJP Posted February 14, 2025 Report Share Posted February 14, 2025 I'm not saying it wouldn't be worth looking into. It would be worth it even if the atf decided the conversion had to be married to the pkm. All I'm saying is I would like to know what was done first. I haven't thought about it a lot but can only think of a couple ways for it to work. Both would probably be illegal. Cut a full auto bolt, carrier, add an offset sear catch that clears the denial. Probably illegal since it could drop in any semi and just run away. Remove denials which would most likely be illegal. Trim denials and refinish so it appears to still be in semi configuration. Like I said in a previous post, would anyone fit this into a semi uzi and slot a full auto bolt to work with it? I would assume that it would probably be ok in any legal pre 82 open bolt semi. I'm really curious about how it was converted to work with a semi. Who knows maybe I'm just missing something. Link to comment Share on other sites More sharing options...
ScottT2 Posted February 22, 2025 Report Share Posted February 22, 2025 I have no idea if the PKM is legal or not. Hope it is for whoever owns it or buys it. I looked at and was certainly interested. The red flag for me was that the ATF letter specifically said that a host receiver must not be modified at all. I think I recall the letter said that 3 times. Then the sellers description said the receiver was "slightly modified". Perhaps the sellers description was incorrect and the trigger pack is a true drop in...but it scared me off. Link to comment Share on other sites More sharing options...
WJP Posted February 24, 2025 Report Share Posted February 24, 2025 All I know is when I went to Wiselite arms 15 years ago Tony told me the ATF was quite particular on what denials had to in place including the firing pin channel being welded on the bolt (full auto bolts are designed to extend the firing pin when fully going into battery). Just from my understanding from him any alterations to the receiver or bolt were a no go period. Link to comment Share on other sites More sharing options...
maxfaxdude Posted February 25, 2025 Author Report Share Posted February 25, 2025 I messaged the seller on GB about taking photos of the bolt and carrier outside of the receiver and the inside of the receiver with internals removed. Link to comment Share on other sites More sharing options...
maxfaxdude Posted February 26, 2025 Author Report Share Posted February 26, 2025 I spoke with the photographer at the gun store selling the PKM and he agreed (after getting the OK from the owner) to take and post some additional photos of the bolt, carrier and internal receiver with all the "innards" removed. He said it may take him a couple days to get it done. We'll see... Link to comment Share on other sites More sharing options...
WJP Posted March 3, 2025 Report Share Posted March 3, 2025 You would figure on $150,000 sale they would be eager to post pictures and get it sold. Even at an extremely modest commission of 5% that's $7,500. I'm interested in seeing the pics. Link to comment Share on other sites More sharing options...
maxfaxdude Posted March 4, 2025 Author Report Share Posted March 4, 2025 15 hours ago, WJP said: You would figure on $150,000 sale they would be eager to post pictures and get it sold. Even at an extremely modest commission of 5% that's $7,500. I'm interested in seeing the pics. My thoughts exactly! I told the photographer that there was definitely interest in the gun but that more pics would be needed to clarify what has been done to make it function like a machinegun -- hopefully LEGALLY! Link to comment Share on other sites More sharing options...
WJP Posted March 16, 2025 Report Share Posted March 16, 2025 Guess no pictures? Probably for a reason. Link to comment Share on other sites More sharing options...
CLC Posted March 17, 2025 Report Share Posted March 17, 2025 Ad says that you can use it in any semi you can shoehorn it into. That's not true at all. That trigger is designed for an open bolt 380 semi period. The letter from atf is poorly worded but sats "compatible semi-automatic" that doesn't mean any semi automatic. FNC sears were disallowed for SCARs and they are much more "compatible" than this setup. Link to comment Share on other sites More sharing options...
maxfaxdude Posted March 20, 2025 Author Report Share Posted March 20, 2025 On 3/16/2025 at 3:51 PM, WJP said: Guess no pictures? Probably for a reason. No new pictures so far...my hope is that this conversion was done legally...but my gut feeling tells me otherwise! Link to comment Share on other sites More sharing options...
WJP Posted May 4, 2025 Report Share Posted May 4, 2025 On 3/20/2025 at 6:25 PM, maxfaxdude said: No new pictures so far...my hope is that this conversion was done legally...but my gut feeling tells me otherwise! Guess he never got back with you. Link to comment Share on other sites More sharing options...
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