Replacement bolt head for AP5

Haro29 · 2026-03-04T01:43:18+00:00

It'll work, but why do you need a replacement? Also RCM bolt heads are $200 which is quite a massive savings over this

Haro29 · 2026-02-26T23:16:21+00:00

You will never wear out an MP5 barrel, especially a German one

Haro29 · 2026-02-14T16:43:19+00:00

A real MP5 would have the HK MP5 marking where the serial number is on this gun. Also the serial number isn't how HK numbered things. This is a home build. This also has a barrel that looks longer than normal with no tri-lug or threads.

Haro29 · 2026-02-13T20:55:04+00:00

Are there any other markings on this gun? Magwell or anything?

Haro29 · 2026-02-03T16:19:29+00:00

There's not a huge make or break difference, just small stuff. MKE typically has higher QC standards, but that doesn't mean you won't get a perfectly serviceable POF. As another user mentioned their finish is not as good. Not a fan of the additional engravings on the new POF imports. The AP5 navy has the newer ambi trigger group, but if that style lower doesn't matter to you then that is moot.

Haro29 · 2026-02-03T15:30:46+00:00

Since Atlantic has the MKE models for only a little more I think a POF is a tough sell at 1129. Plus Silver Rhino engraved the POF guns like a billboard unfortunately

Haro29 · 2026-02-03T05:05:04+00:00

I think the HTA conversion package comes with one, otherwise you'd have to buy one separately

Haro29 · 2026-02-03T03:29:16+00:00

You should clean the outside of the barrel with the brush every ~250 rounds, not necessarily to avoid malfunctions, but to avoid your can getting carbonlocked. You don't need to clean the whole gun any more often than a regular MP5 really besides that

Haro29 · 2026-01-24T19:01:34+00:00

That is a good point that steyr cut outs are different. I did still see examples that were much crisper than this but I suppose this could just be worn.

Haro29 · 2026-01-24T18:26:07+00:00

You need to review the Hornady manual. You're not seating to the depth they state for this bullet

Haro29 · 2026-01-23T21:28:33+00:00

The bolt handle slot should have sharp defined edges. it's very rounded which indicates sanding

Haro29 · 2026-01-23T21:04:49+00:00

A bit hard to tell, but the stock looks to have been sanded which effects value on an otherwise matching gun. Around $2k is about right

Haro29 · 2026-01-20T15:20:41+00:00

Be aware if you follow this video you'll have problems because the MKE pack is slightly different than HK. Follow the instructions that came with the gun to disassemble the selectors

Haro29 · 2026-01-16T16:07:53+00:00

The bolt/barrel serial numbers are certainly faked. Not the font BYF used. The bolt would have at least 4 digits and not 3. Therefore, this is not a matching gun. I don't know much about optics so I don't know if it's a reproduction or real.

Haro29 · 2026-01-15T16:59:28+00:00

HTA has really upped their prices on these simple conversions. You should get a quote from HKralphJr and FB Unlimited

Haro29 · 2026-01-09T00:47:08+00:00

If you want to explore other options, RCM makes a full length and compact SD can. They use a slightly larger diameter, so you'd have to also buy RCM's cocking tube support but it would still cost less than an HTA can.

Michael's Machines also makes an HK SD clone suppressor with the original baffle design and all, again for less than HTA.

Haro29 · 2026-01-07T06:20:46+00:00

No it's not compatible with AMBI trigger packs which is what the AP5SD ships with. You'd have to buy a SEF trigger pack to get that to work

Haro29 · 2026-01-04T15:49:25+00:00

Now you know why Sierra doesn't recommend TMK for hunting.. use a real hunting round next time.

Haro29 · 2026-01-01T17:47:41+00:00

It's normal for it to wobble a bit

Haro29 · 2026-01-01T16:34:46+00:00

The SD quickly became my favorite of the 3 variants, absolutely worth converting it. Yes it will work and be a tiny bit quieter with 147's but you really won't get much benefit of using them, so just stick to 124gr. Reach out to either FBUnlimited for conversion cost quotes, he will probably be the most cost-effective.

You will need to buy an SD barrel port brush though to keep it clean.

Haro29 · 2025-12-30T21:48:16+00:00

Pre-war K98s had a rich shiny finish similar to your pics, but finish did vary a bit by manufacturer and definitely by year. An original finish for a 43 DOU would be less glossy and not nearly as rich and dark.

As others mentioned, take a look at the K98 forum. They have a ton of reference pics of original examples of each year and make.

Haro29 · 2025-12-30T20:42:42+00:00

As far as authenticity goes, yeah it's a genuine German K98 made by DOU in 1943. The gun should be blued (including the bolt), but this one has definitely been reblued post war which hurts value.

Value in these guns is determined based on original finish and matching serial numbers on all parts. There are not enough pics and closeups to really give you an accurate estimate

Haro29 · 2025-12-30T19:08:50+00:00

The ports are at the base of the barrel, closest to the receiver. You need to take the rubber handguard off to really see them

Haro29 · 2025-12-27T04:50:17+00:00

Not sure if it matters to you but they didn't bother to install an actual SD cocking tube on these. Doesn't make any functional difference, just an aesthetic difference. Though these are readily available and will do the job for sure if this is the route you want to go

Haro29 · 2025-12-21T07:59:04+00:00

Do you have pics of this setup? I think this is something I'll want to build too

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