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After seeing an MP5 mag marked like this, I had to fire up the laser today to play around since I had some time to kill before going to a family dinner….notice I even dug out an “II” code 1988 magazine for this….im giggling as I look at it as I think it’s hilarious!! Maybe if I get a wild hair...

I have a pile of HK trigger packs to sell and more coming. These are surplus HK packs setup with rifle hammers and springs with roller sears in them. Pictured are 20 units and I have another 15 or 20 more coming. Price is $214 ea shipped. If you want more I can combine the shipping.

I have something that all of the new HK21 owners needs to have in their parts supply. Everyone is going barrel crazy, but no one has stopped to thinking about the fact EJECTOR LEVERS wear out and need to be replaced over time. Here’s your chance to stock up…I have roughly 30 of these original...

Here’s some pictures (and video) the HK21 I’ve been working on the past couple weekends. I am very pleased with the results of this and hopefully it will pay off down the road. In the process I discovered I had a feed mech that had a bad feed wheel shaft which wasn’t allowing it to feed the...

Spent a long day yesterday in the shop ….the parts came in to start on a PTR 9 “Classic” as well as a POF to convert into an SD-Hybrid. I also had the parts come in for a complete SD build from a flat. Also got in three B&T SD suppressors as well so they can all be used for testing on the guns...

While I was working on some PTR9-SD conversions for fellow forum members today, I decided to dig out an old Special Weapons MP5K receiver I have had laying around for awhile and play around with it…since I had the SD welding jigs kit figured why not. I had to replace the shelf that was on it as...

I’ve been building HK clone host guns for awhile and shooting the crap out of them to make sure they work and don’t come apart….I’ve also been building them for others as well. As you can see in the thread in the “HK Clone section” I recently did a conversion gun where I took a PTR 9R-608 (16”...

I have had several people ask if it was something I could or would do, so why not…let’s try it. This morning I started with a pile of parts and a stock 16” PTR 608 gun…4 hours later I had a fully functional SD SBR…..the worst part was I had to drill out the center of the barrel locking pin to...

Got to get my hands on these impressive weapons yesterday while setting up at SHOT. It helps when you work for someone who knows the right people.

Picked up this receiver back in the spring and it needed some minor stuff done to finish it out and then assemble. I found the correct HK feed mec, bolt, and barrel assembly as well as the correct stock, so now it’s time to start assembly. Still need the following to compete the gun: Ejector...

With the popularity of SD’s these days, and the amount of guys looking for the old school SureFire M23 clamp on light mounts, I came up with a single rail, modern take on the M23. This unit would allow you to mount a SureFire Scout Light (as shown) or be able to mount an IR unit as well. I...

Thought I’d drop a couple pics of one of the MP5SD-Hybrid guns I’ve been working on this weekend. I used one of the prototype integrated rear sight/rail systems that fellow a member on the other HK site came up with. This is the first one to be mounted on a gun and I must say it’s AWESOME! I’ll...

I was building a couple MP5’s and SD’s when I realized HK Parts failed to ship me the right parts for my order…..so I decided to start on a pet project I’ve been wanting to do….an HK53SD chambered in 300 BO….I think it’s coming together nicely. I cut down an RCM 300 BO barrel to 7” and...

Finally got back into the shop and spent the weekend catching up on builds and still have a backlog to work through. Here’s video of the G3, HK33, and HK53 host guns I built this weekend. The G3 has a PTR receiver I ordered in from Sarco and the 33 as well as the 53 were built on old Special...

I am in need of one for a project I want to start working on. For some reason they have all disappeared....making me wonder if I should bulk buy MP5 flats/weld kits while I can.

Selling a used PTR 91 with pic rail and green furniture. Comes with 4 HK aluminum mags. Got it in on trade from a client. I’ve put 100 rounds through this and tested it with a sear. The gun ran great. $1050 shipped to your FFL Sold on another forum already

Decided I’m not going to go the UMP route so I’m selling off the mags I picked up. These are factory HK UMP 9mm magazines. I have 10 of these and would prefer to sell the all one shot, but will piece them out if needed $65 each shipped $312.50 shipped (5 mags shipped) $600.00 shipped (10 mags...

I was playing at work with Solidworks and designed a clamp on suppressor mount with pic rail so you can attach a SureFire Scout or similar light. Programmed my CNC mill up today and made the prototype unit today. Between my cnc and manual mills it took some time but it looks good (least I...

Figured I’d post up a few pics of the MP5K-Reverse Stretch guns I’ve been working on. One is the number one build (for me) of this variation and the other one is for a client. I’ll be going out for test fire after work tomorrow. Then it’s onto final finish of a couple more SD’s..... No rest for...

I have two Franklin Armory HK binary trigger packs on hand. $600 each plus shipping.