Conversion for m11-15 and m10-15, possible?

[strobro32]

I had time to modify the closed bolt to open bolt today. I ran strings of 5 rounds to test. It's a fast little sucker. ROF is 2275 RPM suppressed. Wow. I hope by adding the sear plate, the bolt weight will increase and slow it down. I am using the low weight pistol bolt so it does not have the mass of the rifle bolt.

 

[Deerhurst]

Sweet! Let me know how things progress. I made sure to save a copy of each revision. Can figure out some way to make as many as you need.

The flat one is definitely the sleekest.

 

[strobro32]

I guess a conversion is possible.

https://flic.kr/p/2obmiXZ

 

[pjm204]

I guess a conversion is possible.

https://flic.kr/p/2obmiXZ

Are you planning to speed it up at all? Kind of slow hahaha

 

[mak91]

 

[woodenword]

Wow!

 

[sniperdoc]

I guess a conversion is possible.

https://flic.kr/p/2obmiXZ

DAMN that's fast!

 

[strobro32]

I'm so full of giggles right now.

I got a brief chance to test the new sear catch assembly this morning. I installed the 15-22 rifle mainspring instead of the pistol mainspring. It ran 2 full 25 round mags in a row, one full mag and one 5 round bursts. I think it works great. I will test more this weekend and get some ROF numbers.

 

[NAM]

Slightly off topic, but is that a quick change barrel adapter, and if so, what kind? I've heard of folks using Dolos, but that looks different.

 

[strobro32]

Yes it is. It's the Cry Havoc QCB. The system allows me to quickly switch between 20" 5.56, 10" 5.56, 8" 300 BO and 4.5" 22 LR barrels. I like the Cry Havoc system because it has no springs to get soft from the heat of FA like the DOLOs and LEO systems. It uses a camming locking system. It also makes cleaning AR barrels easier/faster.

 

[NAM]

Yes it is. It's the Cry Havoc QCB. The system allows me to quickly switch between 20" 5.56, 10" 5.56, 8" 300 BO and 4.5" 22 LR barrels. I like the Cry Havoc system because it has no springs to get soft from the heat of FA like the DOLOs and LEO systems. It uses a camming locking system. It also makes cleaning AR barrels easier/faster.

Any modifications needed to the Cry Havoc QCB or 10/15 receiver? I know DOLOS requires a minor modification. I'm wanting to do a quick change setup as well, but have not yet decided on which system. You have good points regarding the heat and springs...

 

[strobro32]

No chasnges are required for the Max-11A1/15 upper.

 

[Deerhurst]

Ouch, that's a $400 barrel nut!

 

[theduke]

Ouch, that's a $400 barrel nut!

You can't put a price on a 22 kit

 

[strobro32]

You could do a dedicated 22 kit with a regular barrel nut. I just wanted to switch between calibers quickly like an AR upper.

 

[Deerhurst]

You can't put a price on a 22 kit

For the M10 I'd be much more willing.to.spend that on a barrel nut than an AR where I can put together another upper from my spare parts bin for virtually free.