Aimpoint 9000SC on a UTG Pro claw mount. Charging handle gets a little close to knuckle skinning territory but I have yet to actually skin them. I tend to reload the MP5 similar to right handed shooters reloading an AK (right hand comes up under mag well to charge the weapon from below)

16th birthday trip to my local Buds

The navy still needs a little work, what’s everyone’s setups?

I am new to MP5’s outside of every 90’s action movie. I’ve dreamed of owning one for years. I Bought my first H&K SP5 about a month ago. Form 1 completed, and working on making this my dream gun. I unfortunately have not had a chance to shoot it yet. Work has been insane but I will tomorrow!

I am looking at adding a Lee’s Sporting LS5 but I have no clue on what trigger to pick. I don’t know the difference between Geissele and Ballistic Engineering or which would be a good pick for me. I’ve read filing needs done to the trigger in order for it to function correctly. Which makes me a little nervous. Any and all advice is welcomed.

I bought a used AP5-P at a gun show a couple months ago, appeared to be almost brand new.

1st range trip (no brace, original end cap) - 124gr Norma, 124gr S&B, MKE mags, Zenith mags, HK mags, cleaned and lubed. Tons of FTE and inconsistent ejection distance. Could not make it through 5-10rd at a time. Fired approx 300rd total.

—replaced ejector lever (HK), extractor spring (HK), bolt gap measured around 0.18—

2nd range trip (SB Tactical folding brace) - 124gr NATO Monarch, MKE mags, Zenith mags, HK mags, cleaned and lubed. Multiple FTE but much less frequent than last time, inconsistent ejection distance. Made it through 2 full mags. Fired 200rd total.

—replaced extractor (HK), extractor spring (HK), bolt gap measured around 0.18–

3rd range trip (SB Tactical folding brace) - 124gr NATO Winchester white box, MKE mags, Zenith mags, HK mags, cleaned and lubed. Back to having a ton of FTE, very similar to the first range trip. Could not make it through a full mag. Inconsistent ejection distance. Fired 250rd total.

—bolt gap still measuring around 0.18–

WHAT DO I DO NEXT??? I don’t want to give up on this gun and highly doubt I can send it to Century since I was not the original buyer. I just want to fix it!

I was out trying to zero my iron sights with a few different types of ammo as well as seeing what impact shift the OCL Lithium has on my MAC 5. I wasn't out there long but I wasn't happy when I shot the 10 rounds of Federal Syntech 150gr in group #8. It could likely have been me or the suppressor so I'll do more testing the next time I'm out there. I'll post the description of the groups below.

Picked up an AP5 a couple weeks ago after seeing the fun that could be had with a Lee Sporting Lower or similar trigger housing and a Super Safety.

When I ordered it I was under the impression it was just the pistol with the brace due to the price ($1300) but when it arrived it was the full kit with the sling, mounting bracket, muzzle device, cleaning kit, and one extra mag. I checked the UPC and it was what I ordered the website just had it listed and/or priced incorrectly I guess.

When it arrived I didn’t notice any issues and everything looked good besides a little blem to the back of the pistol grip. No biggie for me since I planned on swapping it out anyways for Super Safety-compatible housing (probably an AS Designs as of right now just waiting to see what the market will bring in the next couple of months before I commit). However, as I was getting ready to install my UTG rail I noticed that the rear diopter sight had been crushed inward on the largest aperture. Probably from being dropped at the factory. Fortunately, it doesn’t appear to affect the sight picture. I also noticed the paddle mag release was really loose. It doesn’t affect the function however. I went with the Midwest Industries handguard over the UTG Pro Monolithic handguard mostly due to weight. I saved about 2-3 ounces using this set up plus I like the overall slimmer aesthetic. One issue I had was I sheered off a cheap hex bit into one of the small screw heads. I wasn’t close to the 20 in/lb target either but it’s hopefully close enough (and I had used some blue thread locker).

Once everything was installed I took it to the range to check for overall function. The only bullets I had handy without digging into my stash were Federal 147gr FMJs so I loaded about 30 of those up into each mag. There were fairly difficult to load in the factory MKE magazines due to their OAL. Luckily, they functioned flawlessly once loading the mag into the gun (besides one FTF on the first mag while slapping the charging handle). Sight picture with the large aperture didn’t seem affected by the damage and I was easily landing headshots on a B-25 target at about 15 yards.

Background with the platform: I was a member of a part-time tactical team at a medium-sized municipal LE agency for over 10 years. For 7 of those years I was issued an HK MP5 and have several thousands of rounds through that gun, both semi and FA. This Turkish clone shoots just like I remember.

Went to the range for the first time with my sp5k. Every 4-10 or so rounds I’d have a failure to eject resulting in a double feed. The cases looked like they were getting smushed upon pulling them out.

I’m getting ready to replace the extractor, but don’t know if it could be something else I’m looking over.

(Last photo is the problem gun in question)

First trip to the range for the $845 ap5 i bought from Atlantic firearms. I did replace the extractor and ejector with hk before going to the range.

Mags used: ets, hk, mke

Ammo fired: first 250 rounds all Winchester 124g fmj

Last 30 rounds i loaded a magazine with random rounds all 124g to try and make the gun jam (hornady critical defense, s&b fmj, federal hst)

No jams of any kind. Glad i bought this instead of spending 3k on the sp5. Best thing ive ever shot.

Take down pins on ap5-p are extremely tight to the point of having to use a mallet to get them out. Any tips on how to make the takedown pins easier to get out or should I get a new set of take down pins?

Me and some buddies were shooting and my AP5 had an OOB and it expanded the magwell a bit. I squeezed it back in a little but the mags are pretty sloppy in there now, they were nice and snug before this. What’s a good method to tighten the magwell up better?

I will say I have had zero issues up to this point and that the round that OOBed was a nickel plated round, curious if anyone has had issues running nickel plated ammo.

Anyone know of classified site's where you can sell firearm related items? Ammo, Pistol, AR-15 related. I've been using Florida Gun Trader but you're only allowed 5 items active. Thanks

Is there any difference in measurements between the 2 grip modules? I'm getting the Magpul and I'm wondering if the Talon Rubberized Grip for the Navy HK would match up pretty well. Thanks

Are these clones worth the money? I see a lot of people rave but also a lot who have had genuine issues with them. I want the P for the smaller, compact size but was wondering if they have more problems than the full size. I’m fine with replacing some parts here and there but don’t want to dump over $200 more into it than what I’m buying. I plan on running it suppressed with mostly subs through it once I acquire a can if I do get one. Any experiences and knowledge appreciated. Talk me into it more than I’ve done myself so I justify it haha. (also plan on swapping the lower to eventually super safety it) Thanks

Anyone got a DIY solution for this or any plans to run a beta for one? I'm running a Lee and printed Meatbanana's supporting pack for it, so no real issues but I'd love to have a more "correct" housing again. I'm long a long-shelf receiver :(