ISSC MK22: Supressors, Scopes, acessories, etc

[Major Asstard]

The Tactical sniper scope looks cool, but I personally don't like the idea of lifting my cheek off of the stock to look through the RDS. You would loose your cheek weld support and your face/eye is going to be wandering all over the place. The SPARC looks to be a quality piece for the price point, but I have no experience with them, only from what posts I have read in the past. Granted, the plates in our video are larger than a target you will probably be shooting at, but the Iron Sights are quite adequate to get on target with. It was kind of uncanny as we were taking turns speed shooting the plates. The rifle almost seemed to lock in on the plates as fast as we could point & pull the trigger. And for what distances this rifle is designed for, as well as the bullet characteristics, you will have to decide what kind of shooting you want accuracy from. 50 or 100 yards?, then determine what scope you will need. As for the folding stock, any modifications you make in California, you make at your own risk.

[SgtStrykerUSMC43]

Thanks for the schematics and the video. I wonder if re-ordering and installing part #54 would allow the stock to fold.

I don't think you can have a folder in Kali.

[Gos]

I don't think you can have a folder in Kali.

I don't think the ban affects rimfire rifles.

[SgtStrykerUSMC43]

I don't think the ban affects rimfire rifles.

I figured since he mentioned that he wanted to fold the stock (again) through purchasing a part, the rule (law) also applied to rim-fire long guns as well.

[copter976]

I figured since he mentioned that he wanted to fold the stock (again) through purchasing a part, the rule (law) also applied to rim-fire long guns as well.

It doesn't apply to rim fire weapons. Unfortunately, most gun dealers aren't quite up on that sort of thing. They see "Black Rifle" and are too quick to "neuter" a rifle to make it "CA legal". As long as the barrel is 16 inches and the mags are 10-rounds, you're good...

[SgtStrykerUSMC43]

Thanks for clearing that up copter.

[TAFFY003]

I have a Mk22 and the only problem Im having is light strikes. Went to the range today and was averaging about 1/10 light strikes per fired round. Its really annoying since pulling back the charging handle dosen't eject the round and the gun jams up. The only way to clear it is to take out the magazine and get the round to drop out of the mag well. Eventually about 40 rounds in it was light striking every round. Its not the ammo, ive tried all kinds and on the you can see a noticeable difference in the indentations on the shell casings of the light strike rounds and the successful ones. I tried to contact ISSC but they never returned my emails. I love this gun when it runs, but it totally ruins the experience when you actually start expecting your gun to go *click* instead of *boom* when you pull the trigger.

Starting to wish I got the S&W MP15 or HK MP5 22

[Major Asstard]

UPDATE:

Tonight I tore my MK22 completely down. I pulled the stock and bracket off revealing the two allen head screws that hold the bolt locking bracket in place. Then I pulled the bolt group out of the upper. I thought about soaking it, but that's not the way I roll. I tore the whole bolt group apart albeit the firing pin housing. Needless to say it was filthy. I used a magnetic parts tray to hold all the screws in their appropriate configuration. This tray is extremely useful if the screws are of different lengths and keeps them in their appropriate positioning. Trust me, you bump the table, the screws roll around and... oh crap, which one went where? Been there, done that! I cleaned/toothbrushed and lightly scraped off the carbon build up and then used Rem Oil prior to reassembling the bolt carrier group. Before I tore it apart it was gritty from all the powder residue. Now it slides real sweet. Tomorrow morning I will post pics of the before and after breakdown. Stay tuned.

[Major Asstard]

Back to the project:

Here are pics of the BCG before cleaning. This rifle has only been to the range about 3 times with minimal shooting. The barrel was cleaned after each range outing, but not the internals.








NOTE: When reassembling the BCG, make sure the "Small" end of the springs face the bolt.





And here are parts after cleaning:





I did not take the firing pin/extractor housing apart due to several springs inside for fear of it detonating all over the room, but it was soaked and thoroughly cleaned, dried and lubricated with RemOil. The extractor moves much smoother now.






Here is the lower before cleaning: As you can see the powder residue goes everywhere!




Here is the upper receiver:



Here is the chamber before cleaning:



and after...



After the charging handle, spring/holder and the BCG are reinserted, you can see the BCG locking bracket. These two screws need to be tight. I used Blue Loc-Tite on them, but be careful to NOT torque them too tight as the nut to the top of the photo is not that large and could easily be stripped out.



As the photo clearly shows the .22lr rounds are very dirty. Mag cleaned as well to avoid feeding issues.



By the looks of the pics before cleaning you would think this weapon was used in Afghanistan.
These rounds are very dirty and the blowback spews the residue all through the inside of the rifle. But with proper maintenance and using better quality ammo, this weapon should give many years of shooting pleasure. As soon as I can get to the range, weather permitting, I will shoot various brands and report back with my findings.

MAJOR

[SgtStrykerUSMC43]

That's ONE heck of a detailed post, Major.



Thanks for doing this.