[Callahan]

Can anyone tell me if the U.S. HK MR762 is the same as the European HK MR308? If not, what are the differences? I live in Europe and am considering getting an MR308 and I am in the gathering information phase.

 

[Montrala]

There are some small differences, but generally it is same rifle. You can get it with 20" barrel in Europe.

 

[Callahan]

There are some small differences, but generally it is same rifle. You can get it with 20" barrel in Europe.

HK mentions the 20" barrel for the HK417, but so far all the ads that I have seen for MR308s (new and used) have only offered the 12" and 16" barrels, but that doesn't mean that the 20" barrel isn't available. What are the pros and cons of the different barrel lengths?

 

[samf]

HK mentions the 20" barrel for the HK417, but so far all the ads that I have seen for MR308s (new and used) have only offered the 12" and 16" barrels, but that doesn't mean that the 20" barrel isn't available. What are the pros and cons of the different barrel lengths?

A friend of mine has sold many 20" MR308 in Germany, so they are available. I would also like to know the pros and cons of the 16" versus the 20".

 

[AGR416]

The 20" barrel will have a slightly higher MV than the 16", affecting the trajectory. The longer barrel can also improve accuracy. The longer barrel will have less muzzle signature than the shorter barrel. The downside of a longer barrel is increased OAL of the weapon and increased weight.

 

[samf]

The 20" barrel will have a slightly higher MV than the 16", affecting the trajectory. The longer barrel can also improve accuracy. The longer barrel will have less muzzle signature than the shorter barrel. The downside of a longer barrel is increased OAL of the weapon and increased weight.

Thank you.
What barrel length do you use in Norway?

 

[AGR416]

We have the 20" version.

 

[Callahan]

The 20" barrel will have a slightly higher MV than the 16", affecting the trajectory. The longer barrel can also improve accuracy. The longer barrel will have less muzzle signature than the shorter barrel. The downside of a longer barrel is increased OAL of the weapon and increased weight.

Thanks for the info.

 

[samf]

You will see a just delivered MR 308 20 " here.

 

[Callahan]

A thing of beauty.

 

[Leibermuster]

What about running the MR308 suppressed????

 

[AGR416]

Depending on the type of suppressor and ammunition, you could experience POI shift.

On our guns (HK417 20") we have "norm" of 10 cm low and 3cm to the right, at all ranges, with the suppressor we are issued. There are variations of these figures with some guns, so each shooter has to true it.

 

[Leibermuster]

So they will work fine in the MR308 configuration then? What suppressors/companies due you recommend for my MR308?

 

[AGR416]

I can't really recommend any types or manufacturers. I have very little experience overall with suppressors, only with the B&T we have on our guns. http://www.bt-ag.ch/fpdf/factsheet.php?pid=321

Hopefully someone who has used suppressors extensively can chime in.

 

[Jippo]

So they will work fine in the MR308 configuration then? What suppressors/companies due you recommend for my MR308?

There are conflicting reports on suppressors and MR308. So do not take it for granted that it will work 100%. I know people have had issues with 16" barrels and at least some cans.

I have run BR reflex suppressor with a 20" MR308 without issues so far. I haven't got that many rounds through it, but I have tested several bullet weights and manufacturers with good results so far. But testing is not conclusive due to the low round count.

PS. For the original poster, MR308 is at least very similar to the MR762. They might be actually same as well, but that is not certain. There is short review MR308 I posted on a another forum here:

http://www.m4carbine.net/showthread.php?t=98306

 

[Leibermuster]

There are conflicting reports on suppressors and MR308. So do not take it for granted that it will work 100%. I know people have had issues with 16" barrels and at least some cans.

I have run BR reflex suppressor with a 20" MR308 without issues so far. I haven't got that many rounds through it, but I have tested several bullet weights and manufacturers with good results so far. But testing is not conclusive due to the low round count.

PS. For the original poster, MR308 is at least very similar to the MR762. They might be actually same as well, but that is not certain. There is short review MR308 I posted on a another forum here:

Heckler & Koch MR308 review - M4Carbine.net Forums

Thanks appreciate the info...

 

[Callahan]

There are conflicting reports on suppressors and MR308. So do not take it for granted that it will work 100%. I know people have had issues with 16" barrels and at least some cans.

I have run BR reflex suppressor with a 20" MR308 without issues so far. I haven't got that many rounds through it, but I have tested several bullet weights and manufacturers with good results so far. But testing is not conclusive due to the low round count.

PS. For the original poster, MR308 is at least very similar to the MR762. They might be actually same as well, but that is not certain. There is short review MR308 I posted on a another forum here:

Heckler & Koch MR308 review - M4Carbine.net Forums

Thanks for the review. Very helpful.

 

[mildot]

Can the MR762 use the larger castle nut like on the G28? Thanks

 

[nsheers]

Yes, the MR762 has the same diameter size receiver extension as the G28, so you can use the G28 castle nut on a MR762. I use one on both of my MR762s.

 

[mildot]

Yes, the MR762 has the same diameter size receiver extension as the G28, so you can use the G28 castle nut on a MR762. I use one on both of my MR762s.

After reading Montrala thread, he said that the 416A5 had the same thread/castle nut as the G28? does that sound right?