MAD 9mm MP5 Bolt Head

[ARCHIVED THREAD] - MAD 9mm MP5 Bolt Head (Page 1 of 2)

Posted: 4/26/2017 3:15:19 PM EDT

It appears Moore Advanced Dynamics (MAD) has re-engineered the MP5 bolt to remove what I consider it's weakest link, the extractor spring.

I read that Battlefield Vegas (@hendersondefense) is running a few in their rentals and so far so good. Does anyone else have any reviews on them. I am on the verge of ordering one for my full auto K, but $479 is a tough pill to swallow an thats a lot o' extractor springs.

New

vs.

Old

https://www.centerfiresystems.com/p-5251-mad-9mm-mp5-bolt-head.aspx

Posted: 4/26/2017 8:29:57 PM EDT

[#1]

bump

Posted: 4/26/2017 8:33:57 PM EDT

[#2]

Interesting, reminds me of the HK PSG-1 bolt/extractor setup. Hk realized the extractor was an issue for precision shooting and solved it for the PSG-1 sniper rifle.

Posted: 4/26/2017 8:54:52 PM EDT

[#3]

OS Tag

Posted: 4/26/2017 9:29:53 PM EDT

[#4]

Looks a LOT like a 23 bolt head.

Posted: 4/27/2017 9:19:52 AM EDT

[#5]

I love the design. I'd bite in the mid 2's but not where it's at now.

Posted: 4/27/2017 9:55:03 AM EDT

[#6]

Quote History

Quoted:
I love the design. I'd bite in the mid 2's but not where it's at now.

View Quote

When you factor in the cost of a new regular bolt head, its only in the mid 2's more expensive.

Posted: 4/27/2017 4:38:01 PM EDT

[#7]

I simply haven't had enough problems with the original design to warrant the money.

Posted: 4/27/2017 5:23:16 PM EDT

[#8]

Quote History

Quoted:
I simply haven't had enough problems with the original design to warrant the money.

View Quote

cause your not shooting enough!

Posted: 4/28/2017 7:19:49 AM EDT

[#9]

A good idea thats priced itself into oblivion.

Posted: 4/28/2017 11:37:37 AM EDT

[#10]

Yeah, I'd be interested, but it's priced way too high IMO. I understand that anything MP-5 ='s a larger price tag but geez. This is as bad as Franklin Armory's $700+ dollar binary trigger pack...

Give us a break guys.

Posted: 5/11/2017 11:57:04 AM EDT

[#11]

bump

Posted: 5/11/2017 3:35:43 PM EDT

[#12]

It's going to be difficult to find anyone who has more rounds downrange with those than Henderson.

Posted: 6/18/2017 5:00:33 AM EDT

[#13]

Would this work with a DJ Getz MP5 clone? Full Size and K.

I've gone through a few extractor springs...

Posted: 6/18/2017 8:16:40 AM EDT

[#14]

Yes they will work with the Getz clones , Battlefield Vegas is running some of our Omega clones and said with the MAD Bolts they just could not be stopped. So we decided to order some in and they are very nicely machined . I think they are going to be listed for 299.00.

Posted: 6/18/2017 9:12:42 AM EDT

[#15]

These bolt heads warrant additional cost. The design has been tested above and beyond the normal failure tests. RCM manufactures these bolt heads for MADD. We have worked with them since day one and believe this is the next generation bolt head.

Posted: 6/18/2017 10:13:41 AM EDT

[#16]

I could do $299 if I hadn't just bought a brand new F Bolt.

Posted: 6/18/2017 3:17:42 PM EDT

[#17]

Quote History

Quoted:
Yes they will work with the Getz clones , Battlefield Vegas is running some of our Omega clones and said with the MAD Bolts they just could not be stopped. So we decided to order some in and they are very nicely machined . I think they are going to be listed for 299.00.

View Quote

If you know where they're $299, please post a link. Inquiring minds want to know?

Posted: 6/18/2017 3:54:57 PM EDT

[#18]

We ,, Atlantic Firearms wil have them listed this week on our site for $299.00. We had not listed them yet because we were testing one out first to see what they were all about !

Posted: 6/18/2017 7:46:23 PM EDT

[#19]

Quote History

Quoted:

If you know where they're $299, please post a link. Inquiring minds want to know?

http://i225.photobucket.com/albums/dd154/UltraFudd/SP5K%20SBR%20Right%20View_zpsd9lgtwtd.jpg

View Quote

Dude, the big roller lock dealer says that they're going to list them for $299... it's pretty obvious where you'll want to look for them.

Posted: 6/18/2017 8:04:37 PM EDT

[#20]

Interesting... Any pics of one of these disassembled? How do you disassemble it? How does the extractor spring fit into the works? Is it a coil spring? Will replacement parts be available?

So many questions...

Posted: 6/18/2017 10:27:36 PM EDT

[#21]

The extractor has a US made Spirol Coil Spring that is pressed in from the bolt face. If the picture shows, the pin will expand back out when it passes through both sides of the bolt head and the extractor itself. The exposed pocket will be radiused on the backside to allow the pin to be punched through if necessary and exit up the ramp created by the radiused pocket.

Posted: 6/18/2017 10:29:29 PM EDT

[#22]

All new features have been added after the testing at battlefield
.

Posted: 6/18/2017 10:50:46 PM EDT

[#23]

tag for pictures

Posted: 6/19/2017 8:42:15 AM EDT

[#24]

The link in OP price is down to $329.

So is there going to be a Gen2 of these now with improvements based on BF Vegas?

Posted: 6/19/2017 9:50:59 AM EDT

[#25]

Quote History

Quoted:
The link in OP price is down to $329.

So is there going to be a Gen2 of these now with improvements based on BF Vegas?

View Quote

because the $479 price is ridiculous and insane.

Hell, $329 is a bit ridiculous.

Posted: 6/19/2017 9:52:05 AM EDT

[#26]

$299 is getting better, but a $199 price tag would be more fitting.

Posted: 6/19/2017 8:11:05 PM EDT

[#27]

Here are a few pics of the Moore Advanced Dynamics MAX MP5 Bolt Head.

MAD MP5 Bolt Head

Posted: 6/19/2017 8:28:40 PM EDT

[#28]

Quote History

Quoted:
$299 is getting better, but a $199 price tag would be more fitting.

View Quote

Agreed. I want one (okay, three), but not $300 want. Looks like nice improvement.

Posted: 6/19/2017 9:53:54 PM EDT

[#29]

This may sound dumb, yet I have to ask, will these bolts drop in? Any headspace necessary or change of bolt rollers?

And I'm asking specifically for Getz guns. Thanks in Advance

Posted: 6/19/2017 10:08:58 PM EDT

[#30]

Quote History

Quoted:
This may sound dumb, yet I have to ask, will these bolts drop in? Any headspace necessary or change of bolt rollers?

And I'm asking specifically for Getz guns. Thanks in Advance

View Quote

I believe there is always a possibility the Bolt Gap changes but these should be drop in. My only experience was swapping out an MKE bolt for an F bolt and the gap stayed exactly the same.

At this point, I am going to stay happy with my current German bolt and backup MKE bolt. Really don't ever see wearing one out, let alone 2.

Posted: 6/19/2017 10:20:57 PM EDT

[#31]

Quote History

Quoted:

I believe there is always a possibility the Bolt Gap changes but these should be drop in. My only experience was swapping out an MKE bolt for an F bolt and the gap stayed exactly the same.

At this point, I am going to stay happy with my current German bolt and backup MKE bolt. Really don't ever see wearing one out, let alone 2.

View Quote

This isn't about wearing out the bolt, it's about fixing the weakest link in the MP5 platform, the extractor spring. This would also allow people you use steel cased ammo more reliable as well.

Posted: 6/20/2017 12:39:16 AM EDT

[#32]

My concern would be availability of extractors down the road.

Posted: 6/20/2017 8:16:37 AM EDT

[#33]

Quote History

Quoted:

This isn't about wearing out the bolt, it's about fixing the weakest link in the MP5 platform, the extractor spring. This would also allow people you use steel cased ammo more reliable as well.

View Quote

Man, I am trying to convince myself I don't need this thing!

But I agree, this is something H&K should have done instead of the F Bolt, for reliability reasons. In general, everything I own I want to be bump in the night reliable, but after my Z-5P has choked on some 147gr flat points and HP (Mostly 1 mag, although had issues with a German mag as well) I am kinda leaning towards it being a fun/range toy.

Recently it has run my Win Ranger a few mags without hiccups. If I can get through the next 500 rounds trouble free I may consider selling my F bolt and getting one of these.

Posted: 6/30/2017 11:43:51 AM EDT

[#34]

I own a MAD 33AR myself and its my favorite pseudo assault rifle to shoot even ACOG worthy

. Should such a bolt head come out for the 33 series I will probably cave and buy one.

Posted: 7/9/2017 8:08:12 PM EDT

[#35]

well hell I ordered one for the shop MP5. We will run it through the paces and see how good it is. Nothing like battlefield vegas though.

Posted: 7/13/2017 7:55:36 PM EDT

[#36]

Got the bolt today and installed. Ran a couple of mags through it. It ate everything including the steel cased wolf shit that it normally wouldn't eat at all.

I will go to the range sat AM and run it through the paces. So far though, I am impressed.

Posted: 7/14/2017 8:42:06 PM EDT

[#37]

Quote History

Quoted:
Got the bolt today and installed. Ran a couple of mags through it. It ate everything including the steel cased wolf shit that it normally wouldn't eat at all.

I will go to the range sat AM and run it through the paces. So far though, I am impressed.

View Quote

It's pretty hard to take a gun as old as the MP5 and make it better like this, but these guys really did it. I've shot their entire line of guns at their facility and they make some seriously great full autos.
Their guns outran HKs demos at shot last year. Thats not a joke. That actually happened.

Posted: 7/14/2017 8:53:09 PM EDT

[#38]

Impressive!

Demos of what? MP5 vs. MP5?

Posted: 7/14/2017 10:15:17 PM EDT

[#39]

Quote History

Quoted:
Impressive!

Demos of what? MP5 vs. MP5?

View Quote

It was a closed range day pre-SHOT for LE and .mil demos. It was before they officially released the new bolt head. They were in the guns already but none of the shooters knew it.
The HK rep asked them what they were doing to get the guns to run so well

That's how you know you've got a winning idea.

Posted: 7/17/2017 2:37:29 PM EDT

[#40]

Well I managed to put over 700 rounds mostly full auto with the new bolt on Saturday.

Ammo used was mostly wolf, tula, Prvi, and some federal brass.

The gun ran great, with only a 5'ish stove pipes. Simple charging and shaking the casing out.

I am impressed and would highly recommend one of these if you do a lot of shooting or have a trigger pack.

Posted: 7/22/2017 11:42:52 PM EDT

[#41]

Put another 200 rounds through it this evening, all FA wolf steel cased with only 1 failure.

Posted: 8/23/2017 4:11:02 PM EDT

[#42]

Any more updates or feedback?

Posted: 8/23/2017 4:33:57 PM EDT

[#43]

I believe that they have begun testing a 40 S&W / 10mm version of the bolt head.

Posted: 8/23/2017 4:37:22 PM EDT

[#44]

Quote History

Quoted:
Any more updates or feedback?

View Quote

Well it works if thats what you are asking.

I had a few light primer strikes on a different full auto gun, but thats the only malfunctions I have seen with it.

Posted: 8/23/2017 6:33:35 PM EDT

[#45]

Quote History

Quoted:

Well it works if thats what you are asking.

I had a few light primer strikes on a different full auto gun, but thats the only malfunctions I have seen with it.

View Quote

Just wanted to see if they were still going strong or any issues popped up.

Posted: 8/24/2017 7:44:25 AM EDT

[#46]

Spoke with MAD earlier this week and we hope to get a 40 cal model to test from them in a few weeks !!

Posted: 10/29/2017 7:13:40 PM EDT

[#47]

probably 800 rounds of tula 9mm thru dakota mp5kn no problems; could not get thru a mag of the stuff before.

Posted: 10/29/2017 10:19:51 PM EDT

[#48]

duped

Posted: 10/29/2017 10:20:38 PM EDT

[#49]

Quote History

Quoted:

Just wanted to see if they were still going strong or any issues popped up.

View Quote

I've got one as well you can try the next time we're together at the range. Ran 120 rounds 124g NATO through the SD w/o a single problem.

Posted: 10/30/2017 12:18:39 PM EDT

[#50]

Quote History

Quoted:

I've got one as well you can try the next time we're together at the range. Ran 120 rounds 124g NATO through the SD w/o a single problem.

View Quote

Did your paperwork get approved on both of your HK's? I have been so busy that I have not been out in awhile.

[ARCHIVED THREAD] - MAD 9mm MP5 Bolt Head (Page 1 of 2)

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