User Panel
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 |
|
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.
|
|
I love the design. I'd bite in the mid 2's but not where it's at now.
|
|
|
I simply haven't had enough problems with the original design to warrant the money.
|
|
|
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. |
|
It's going to be difficult to find anyone who has more rounds downrange with those than Henderson.
|
|
Would this work with a DJ Getz MP5 clone? Full Size and K.
I've gone through a few extractor springs... |
|
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.
|
|
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.
|
|
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 !
|
|
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 |
|
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... |
|
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.
|
|
All new features have been added after the testing at battlefield
. |
|
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? |
|
|
$299 is getting better, but a $199 price tag would be more fitting.
|
|
|
|
|
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 |
|
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 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. |
|
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 |
|
My concern would be availability of extractors down the road.
|
|
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 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. |
|
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.
|
|
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.
|
|
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. |
|
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 Their guns outran HKs demos at shot last year. Thats not a joke. That actually happened. |
|
Quoted:
Impressive! Demos of what? MP5 vs. MP5? View Quote 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. |
|
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. |
|
Put another 200 rounds through it this evening, all FA wolf steel cased with only 1 failure.
|
|
I believe that they have begun testing a 40 S&W / 10mm version of the bolt head.
|
|
|
|
Spoke with MAD earlier this week and we hope to get a 40 cal model to test from them in a few weeks !!
|
|
probably 800 rounds of tula 9mm thru dakota mp5kn no problems; could not get thru a mag of the stuff before.
|
|
|
|
Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. One new winner* is announced every week!
You will receive an email every Friday morning featuring the latest chatter from the hottest topics, breaking news surrounding legislation, as well as exclusive deals only available to ARFCOM email subscribers.
AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types.
From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm.
Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more.
Copyright © 1996-2024 AR15.COM LLC. All Rights Reserved.
Any use of this content without express written consent is prohibited.
AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own.