So I got my Derya MK10 from Down Range Supplies today. I bought it knowing there were many negative reports about how it functions but I figured, why not give it a try and see if the others are just unrealistic about it. I got a deal on the Crimson Red version. Which wouldn't have been my first choice but it does look cool. So, whatever.
It arrived in the mail TODAY. Like, this morning. I opened the box and yes, the case is sweet. It immediately gives you a "This is a quality gun" feel. Open it up and everything looks pretty good inside. Nicely laid out, oily but otherwise clean. I pulled out some of the extra pieces and checked them out. Heres my thoughts:
-Chokes
A joke. They feel and look like garbage and they aren't marked so without actually measuring them with a calliper you'd never know what they were. Those came out of the case and will be in my spare parts bin ASAP.
-Folding stock adapter
One of the most disappointing aspects of the gun as a whole is the fixed and folding stock adapters. I thought they would be aluminum. They are, in fact, plastic. The folding one feels sturdy now, but after 1000 rounds how is it going to feel? Ill never use it anyway.
-Sling
Actually quite a nice piece. Ill never use it. But its nice that its included and, again, its a nice looking sling.
-Clamp on front sight
This makes no sense. But, its also junk IMO. Its plastic and, if installed, it wouldn't survive any kind of abuse. I don't know how your supposed to get it perfectly centered anyway so I see no purpose for it.
The 3 mags included are all very nice. They're finished well and feel sturdy. Followers are smooth. No complaints here.
Now the gun. When I First picked it up I was surprised at how light it is. I was expecting something more substantial. Still, its finished nicely, no rough spots and the 2 halves fit together great. Very slick system but more on that later.
On thing to keep in mind. The little lever on the left just above the mag release is a bolt HALF hold open. Its used for disassembling and re-assembling the gun from what I can tell. I havent read the instructions yet. But it seems like this is what its for. If the bolt is not locked back with this lever the 2 halves wont go together.
The giant red muzzle brake looks pretty ridiculous... awesome too... but ridiculous. Its SUPER light. Too light IMO. It feels cheap. It does work, but I just thought it would be more substantial. Works its way loose pretty bad but It think I just need to crank down on it more.
The sights on the gun. The post front and the carry handle rear. Bummer dude. They are plastic. DO they work... yes. They are actually easy to use. But plastic on a 12 gauge? The front sight just clamps on the rail with a spring loaded button and can be removed by hand. It didnt fall off or come extra loose. Nor did the carry handle. But I just don't get the plastic for these parts. One drop and they'd break right off. Its not a big issue for me as theyre coming off to be replaced by a red dot. But I was surprised. Still... they DO work.
Mags fit in the gun fine. They don't drop free but aren't overly tight. Smooth insertion as long as you insert straight up. If the mag is on an angle it wont go in. Ive read reports that hitting the mag on insertion will cause it to lock the bolt and get stuck. Mine did not do this at all. I could slap the bottom of the mag as hard as I wanted with no negative results. The mags lock in tight with a click. Non ever fell out.
All controls on the gun work as expected. The mag release button can be tight if the mag is full and has pressure on it. But otherwise it works fine. The bolt release was SUPER tight at first. So tight I couldnt press it with my finger. Had to be slapped with the palm of my hand. After 100 rounds it loosened up alot and works fine now.
Trigger is good. Nothing amazing or horrible to report. You wont be hitting 1000 yard gongs with it. But thats not what this gun is for. Note: The trigger is.... Plastic. Blah.
Grip and stock are both nice enough. Grip is comfortable. Didnt come loose> nothing fancy but very useable. The stock is strange. Its sticky and gritty. Its comfortable though. I may try a CTR on there at some point but the only complaints I have about the stock are when your actually adjusting it. Which only happens once per use. So they are a non issue IMO. Interesting note... the stock must be fully open to fit in the foam cutout in the case. I have no idea why.
Now on to actually using the gun. The area most people are most concerned about.
I went straight from the post office to the range. I didnt clean the gun one bit. In fact I didnt even wipe off the excess oil on the outside of the gun. I took with me 67 rounds of Dominion low recoil slugs and 68 rounds of dominion low recoil 00 buck. As well as one box of 25 remington Gun Club target loads. The cheap stuff. I knew from my reading that the gun needs about 100 rounds of heavier loads to break in. Then it SHOULD run the target loads OK.
I started by alternating 8 rounds of 00 buck and 7 rounds of slugs (the leftovers in 2 boxes from my last range trip). The buck ran well... though there were a few stove pipes and one complete fail to eject. Nothing jammed. No issues with feeding. Just ejecting. The slugs ran pretty bad. Lots of fail to eject and alot of jamming on the feed ramp.
I then ran a full 25 round of the 00 buck through. By the last 5 rounds the gun was feeding and ejecting without issue. All 3 mags ran the same. Ejection pattern of the hulls was consistent (20 feet to the right rear). The next 25 rounds of slugs was bad. Still, tons of FTEs... almost every other round was a jam on the feed ramp. After investigating things I found that these rounds are SUPER short. Way shorter than your average 2 3/4 round. because they are so short they don't pivot upwards hard enough when the bolt picks the round up and they get jammed into the lower edge of the chamber. If you look at the feedramp/chamber transition on this gun you'll see there is an abrupt and sharp shoulder on the chamber. This seems like a bad thing and, if your using really short shells it is. But on anything even close to a 2 3/4 shell it was not an issue at all. Dominion low recoil slugs are out. Though I did finish of the 2nd box of them I brought along. So 57 round total.
I finished up with 25 more rounds of the 00 buck. I could fire slow, super fast, didnt matter. They all loaded, fired and ejected great.
To end things off, i decided to risk the box of target loads. These done really run well in any of my guns. But I wanted to see if the 115 heavier rounds were enough to work the gun in to the point it would feed the lighter loads. And, to me absolute surprise, they ran PERFECT. Not a single issue in the 25 rounds. Tried all mags and they ran perfect. Actually ejected farther than the 00 buck shells did. My next outing will include a few different brands of target loads to see if they all work as well. Btu as it stands, Im pleasantly surprised with how this gun has broken in and run.
Heres some pics of the gun after I was done 130 rounds. Its dirty, but doesnt show any issues other than the area of the upper where the pin from the lower locks in is showing obvious signs of wear. Which is concerning since this is only 130 rounds. Ill monitor it and if it continues to get worse ill call a dealer and see what theyre saying.





It arrived in the mail TODAY. Like, this morning. I opened the box and yes, the case is sweet. It immediately gives you a "This is a quality gun" feel. Open it up and everything looks pretty good inside. Nicely laid out, oily but otherwise clean. I pulled out some of the extra pieces and checked them out. Heres my thoughts:
-Chokes
A joke. They feel and look like garbage and they aren't marked so without actually measuring them with a calliper you'd never know what they were. Those came out of the case and will be in my spare parts bin ASAP.
-Folding stock adapter
One of the most disappointing aspects of the gun as a whole is the fixed and folding stock adapters. I thought they would be aluminum. They are, in fact, plastic. The folding one feels sturdy now, but after 1000 rounds how is it going to feel? Ill never use it anyway.
-Sling
Actually quite a nice piece. Ill never use it. But its nice that its included and, again, its a nice looking sling.
-Clamp on front sight
This makes no sense. But, its also junk IMO. Its plastic and, if installed, it wouldn't survive any kind of abuse. I don't know how your supposed to get it perfectly centered anyway so I see no purpose for it.
The 3 mags included are all very nice. They're finished well and feel sturdy. Followers are smooth. No complaints here.
Now the gun. When I First picked it up I was surprised at how light it is. I was expecting something more substantial. Still, its finished nicely, no rough spots and the 2 halves fit together great. Very slick system but more on that later.
On thing to keep in mind. The little lever on the left just above the mag release is a bolt HALF hold open. Its used for disassembling and re-assembling the gun from what I can tell. I havent read the instructions yet. But it seems like this is what its for. If the bolt is not locked back with this lever the 2 halves wont go together.
The giant red muzzle brake looks pretty ridiculous... awesome too... but ridiculous. Its SUPER light. Too light IMO. It feels cheap. It does work, but I just thought it would be more substantial. Works its way loose pretty bad but It think I just need to crank down on it more.
The sights on the gun. The post front and the carry handle rear. Bummer dude. They are plastic. DO they work... yes. They are actually easy to use. But plastic on a 12 gauge? The front sight just clamps on the rail with a spring loaded button and can be removed by hand. It didnt fall off or come extra loose. Nor did the carry handle. But I just don't get the plastic for these parts. One drop and they'd break right off. Its not a big issue for me as theyre coming off to be replaced by a red dot. But I was surprised. Still... they DO work.
Mags fit in the gun fine. They don't drop free but aren't overly tight. Smooth insertion as long as you insert straight up. If the mag is on an angle it wont go in. Ive read reports that hitting the mag on insertion will cause it to lock the bolt and get stuck. Mine did not do this at all. I could slap the bottom of the mag as hard as I wanted with no negative results. The mags lock in tight with a click. Non ever fell out.
All controls on the gun work as expected. The mag release button can be tight if the mag is full and has pressure on it. But otherwise it works fine. The bolt release was SUPER tight at first. So tight I couldnt press it with my finger. Had to be slapped with the palm of my hand. After 100 rounds it loosened up alot and works fine now.
Trigger is good. Nothing amazing or horrible to report. You wont be hitting 1000 yard gongs with it. But thats not what this gun is for. Note: The trigger is.... Plastic. Blah.
Grip and stock are both nice enough. Grip is comfortable. Didnt come loose> nothing fancy but very useable. The stock is strange. Its sticky and gritty. Its comfortable though. I may try a CTR on there at some point but the only complaints I have about the stock are when your actually adjusting it. Which only happens once per use. So they are a non issue IMO. Interesting note... the stock must be fully open to fit in the foam cutout in the case. I have no idea why.
Now on to actually using the gun. The area most people are most concerned about.
I went straight from the post office to the range. I didnt clean the gun one bit. In fact I didnt even wipe off the excess oil on the outside of the gun. I took with me 67 rounds of Dominion low recoil slugs and 68 rounds of dominion low recoil 00 buck. As well as one box of 25 remington Gun Club target loads. The cheap stuff. I knew from my reading that the gun needs about 100 rounds of heavier loads to break in. Then it SHOULD run the target loads OK.
I started by alternating 8 rounds of 00 buck and 7 rounds of slugs (the leftovers in 2 boxes from my last range trip). The buck ran well... though there were a few stove pipes and one complete fail to eject. Nothing jammed. No issues with feeding. Just ejecting. The slugs ran pretty bad. Lots of fail to eject and alot of jamming on the feed ramp.
I then ran a full 25 round of the 00 buck through. By the last 5 rounds the gun was feeding and ejecting without issue. All 3 mags ran the same. Ejection pattern of the hulls was consistent (20 feet to the right rear). The next 25 rounds of slugs was bad. Still, tons of FTEs... almost every other round was a jam on the feed ramp. After investigating things I found that these rounds are SUPER short. Way shorter than your average 2 3/4 round. because they are so short they don't pivot upwards hard enough when the bolt picks the round up and they get jammed into the lower edge of the chamber. If you look at the feedramp/chamber transition on this gun you'll see there is an abrupt and sharp shoulder on the chamber. This seems like a bad thing and, if your using really short shells it is. But on anything even close to a 2 3/4 shell it was not an issue at all. Dominion low recoil slugs are out. Though I did finish of the 2nd box of them I brought along. So 57 round total.
I finished up with 25 more rounds of the 00 buck. I could fire slow, super fast, didnt matter. They all loaded, fired and ejected great.
To end things off, i decided to risk the box of target loads. These done really run well in any of my guns. But I wanted to see if the 115 heavier rounds were enough to work the gun in to the point it would feed the lighter loads. And, to me absolute surprise, they ran PERFECT. Not a single issue in the 25 rounds. Tried all mags and they ran perfect. Actually ejected farther than the 00 buck shells did. My next outing will include a few different brands of target loads to see if they all work as well. Btu as it stands, Im pleasantly surprised with how this gun has broken in and run.
Heres some pics of the gun after I was done 130 rounds. Its dirty, but doesnt show any issues other than the area of the upper where the pin from the lower locks in is showing obvious signs of wear. Which is concerning since this is only 130 rounds. Ill monitor it and if it continues to get worse ill call a dealer and see what theyre saying.





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