MRA Renegade Rifles, Parts, and Kits now available

Maple Ridge Armourer said:
You really want a low velocity, inaccurate barrel?

We thought it would work out but testing has shown the Grendel needs a minimum of 16" barrel.

If you are seeking a short barrel for hunting, a 12.5" 300BLK would perform better.
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Sorry to hear that. I was also planning a Grendel build with a MRA 12 1/2 inch barrel. Some of the US forums have reported good results with barrels that short although of course there is a loss of velocity though still very usable inside 300 yds. Very impressed with my MRA handguard and it’s quality and weight - was hoping to use one of your Grendel barrels. I don’t have much interest in a blackout as it would mean adding another caliber and cartridge.

I guess I’ll proceed with a Frankenbuild in 556 and see what I want to do for a separate upper. Can you confirm the barrel lengths you will be offering in 6.5 Grendel and, what the hell, 300 Blackout?
 
I ordered from MRA directly a little while back and SFRC much more re entry.

The SFRC set arrived today. SN in the high 200's.

The colour difference between the upper and lower is pronounced and looks like almost 2 different textures but is not that big of a deal in my opinion as it is going to be a bush gun.

Love the ridges on the front of the mag well. Fantastically machined piece.

Was going to assemble but am waiting for the reaction rod from MRA, which is getting shipped with my receiver set from them haha

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What’s the shortest barrel and stock combo guys have come up with to keep a 26” oal? I have a variety of different length barrels and stocks to try, but was hoping to maybe get away with a 10.3” dd mk18 barrel and either a UBR or Luth stock


Also helped a buddy build his rifle about 90% last night, he has to do some modifications to a handgauard for his, he also bought me a Renegade receiver for being a good friend! Imagine my surprise!

Anyways while putting it together we did not have a reaction rod and I had not read this thread yet so we ran into some of the common problems of holes being filled with what I though was aluminum powder, maybe it was media, my kit also did not
Come with the gas block cover, but after seeing a few of the broken ones I’ll just use a reversed one until MRA gets caught up with the new ones and send them an e mail.

As for the guys destroying their BEV block, just knock out the center pin and pull the metal block out, just need an extra set of hands to steady the receiver while torquing the barrel nut to spec,

Iam excited to build mine over the next few days!

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Craig0ry said:
What’s the shortest barrel and stock combo guys have come up with to keep a 26” oal? I have a variety of different length barrels and stocks to try, but was hoping to maybe get away with a 10.3” dd mk18 barrel and either a UBR or Luth stock


Also helped a buddy build his rifle about 90% last night, he has to do some modifications to a handgauard for his, he also bought me a Renegade receiver for being a good friend! Imagine my surprise!

Anyways while putting it together we did not have a reaction rod and I had not read this thread yet so we ran into some of the common problems of holes being filled with what I though was aluminum powder, maybe it was media, my kit also did not
Come with the gas block cover, but after seeing a few of the broken ones I’ll just use a reversed one until MRA gets caught up with the new ones and send them an e mail.

As for the guys destroying their BEV block, just knock out the center pin and pull the metal block out, just need an extra set of hands to steady the receiver while torquing the barrel nut to spec,

Iam excited to build mine over the next few days!

0xUs5Di
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I just test fit this. 10.5" barrel, muzzle device with no crush washer installed, no stock installed. I think that the 10.5 is probably about as close as you want to push it
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I have a tonne of media in the pivot pin detent /spring hole. I've spent the last hour trying to get it out as there is so much the spring wont even go a quarter of the way in.

I also had trouble fitting a trigger from an Aero precision LPK but a hiperfire heavy gunner fit fine.
 

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STEELCITYSLICKER said:
I have a tonne of media in the pivot pin detent /spring hole. I've spent the last hour trying to get it out as there is so much the spring wont even go a quarter of the way in.
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Find a drill bit that fits (next size down from what would have drilled the hole) and spin between fingers to dig into the crud, pull out, wipe off, try again until you can't get any more out.
 
The A2 style stocks will be longer than the carbine style, but I don’t think muzzle devices count for OAL if I remember right, so I might be hooped for the 10.3”

STEELCITYSLICKER said:
I just test fit this. 10.5" barrel, muzzle device with no crush washer installed, no stock installed. I think that the 10.5 is probably about as close as you want to push it
View attachment 423799
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I have a tonne of media in the pivot pin detent /spring hole. I've spent the last hour trying to get it out as there is so much the spring wont even go a quarter of the way in.

I also had trouble fitting a trigger from an Aero precision LPK but a hiperfire heavy gunner fit fine.
Click to expand...
 
Craig0ry said:
The A2 style stocks will be longer than the carbine style, but I don’t think muzzle devices count for OAL if I remember right, so I might be hooped for the 10.3”
Click to expand...

STEELCITYSLICKER said:
They count for OAL but not for barrel length.
Click to expand...

And barrel length only matters if the firearm is centre fire semi-automatic. With the Renegade, you can use an extremely short barrel if the muzzle device and stock add enough length to still exceed the 660 mm OAL.
 
700-223 said:
Sorry to hear that. I was also planning a Grendel build with a MRA 12 1/2 inch barrel. Some of the US forums have reported good results with barrels that short although of course there is a loss of velocity though still very usable inside 300 yds. Very impressed with my MRA handguard and it’s quality and weight - was hoping to use one of your Grendel barrels. I don’t have much interest in a blackout as it would mean adding another caliber and cartridge.

I guess I’ll proceed with a Frankenbuild in 556 and see what I want to do for a separate upper. Can you confirm the barrel lengths you will be offering in 6.5 Grendel and, what the hell, 300 Blackout?
Click to expand...


I’ve got a 12.5” Grendel barrel coming from IBI. No gas port. Plenty of guys are using 12ish Grendel rifles with great success. I have looked at the Ballistics and deer to 300 yards would be fine. Targets well past that. I went with 12.5 for BC hunting regulations that state minimum 305mm barrel.
 
Ustauk said:
And barrel length only matters if the firearm is centre fire semi-automatic. With the Renegade, you can use an extremely short barrel if the muzzle device and stock add enough length to still exceed the 660 mm OAL.
Click to expand...

Great to know! Thanks guys! I should be golden, my brake is ridiculous
 
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