User Panel
[#1]
Dang, that's disappointing. I've been drooling over those for a while now.
|
|
[#2]
Hard to tell from your pictures, but did the weld at the front of the spring/op rod fail? I recall reading an issue (on KTOG I think) wherein that weld was missing. Curious if that's the same issue you had.
|
|
[#3]
Yes. Same issue mentioned on KTOG.
The "collar" that retains the action spring and guides the piston rod popped out and is jammed up with the spring in the close up pic. I see this issue reported by a several owners online. The fix by Kel Tec seems to be a weld when previously the "collar" was held in place by simple machined indents. I am not sure, but do not recall my piston assembly having any weld marks where the collar is located. Mine is a 600 series. A guy on KTOG with a 900 series RDB had weld marks...maybe they were day dreaming in that Florida heat and forgot to weld a bunch. Lol. It better not take 10 weeks to fix...so annoying. |
|
[#4]
Quoted:
Yes. Same issue mentioned on KTOG. The "collar" that retains the action spring and guides the piston rod popped out and is jammed up with the spring in the close up pic. I see this issue reported by a several owners online. The fix by Kel Tec seems to be a weld when previously the "collar" was held in place by simple machined indents. I am not sure, but do not recall my piston assembly having any weld marks where the collar is located. Mine is a 600 series. A guy on KTOG with a 900 series RDB had weld marks...maybe they were day dreaming in that Florida heat and forgot to weld a bunch. Lol. It better not take 10 weeks to fix...so annoying. View Quote As an additional data point, I just checked my rifle (low 600 serial number) and it has the weld in place. It was obviously done before the parkerization was done, as there's no discoloration around the weld. Seems pretty likely that a rack of rifles missed the weld step. Hard to say how many that is, but it's somewhere between two and 300 |
|
[#5]
Quoted:
As an additional data point, I just checked my rifle (low 600 serial number) and it has the weld in place. It was obviously done before the parkerization was done, as there's no discoloration around the weld. Seems pretty likely that a rack of rifles missed the weld step. Hard to say how many that is, but it's somewhere between two and 300 View Quote View All Quotes View All Quotes Quoted:
Quoted:
Yes. Same issue mentioned on KTOG. The "collar" that retains the action spring and guides the piston rod popped out and is jammed up with the spring in the close up pic. I see this issue reported by a several owners online. The fix by Kel Tec seems to be a weld when previously the "collar" was held in place by simple machined indents. I am not sure, but do not recall my piston assembly having any weld marks where the collar is located. Mine is a 600 series. A guy on KTOG with a 900 series RDB had weld marks...maybe they were day dreaming in that Florida heat and forgot to weld a bunch. Lol. It better not take 10 weeks to fix...so annoying. As an additional data point, I just checked my rifle (low 600 serial number) and it has the weld in place. It was obviously done before the parkerization was done, as there's no discoloration around the weld. Seems pretty likely that a rack of rifles missed the weld step. Hard to say how many that is, but it's somewhere between two and 300 So does this mean you need to break a weld if you ever need to replace the spring? |
|
[#7]
My piston assembly looked like the diagram ...with no weld but same machined indents as diagram...all the way on the left.
|
|
[#8]
Damn... I'm going to have to look mine over. I have about 4k rounds through mine ...mostly suppressed with no problems so far. haven't shot it in a couple of months though.
|
|
[#9]
I think some early carriers didnt have the weld, but they should all have them now. Mine came with the weld. My rdb has run perfectly for well over 1000 rounds of steel cased ammo and many hundreds of rounds of brass cased ammo. With good ammo my rdb shoots just over moa.
|
|
[#10]
When it gets back...I will look forward to several thousand rounds of flawless operation! Come on Kel Tec...don't let me down.
|
|
[#11]
Thanks for sharing. Mine is on the way to me. I will definitely check it over before shooting it. Tag'd.
|
|
[#12]
Wow thanks for sharing. I'd be ticked off too with that kind of turn around time. I'll keep an eye out on mine too.
|
|
[#13]
Sorry for the bad luck....
As far as Kel Tec - Thumbs WAYYYY DOOOWWWN |
|
[#14]
Sucks about the failures..... but mine is solid...still like it better than any other bullpup I have used.
|
|
[#15]
My extractor axis (302 in the diagram above) came loose and got bent by the carrier, 5 rounds into a magazine, making the weapon inoperable! Message sent to KT
|
|
[#16]
35mm shooter...How many rounds did you have on the rifle before this happened?
|
|
[#17]
|
|
[#18]
Quoted:
60 rds the first time I shot it, just 5 rounds this time View Quote View All Quotes View All Quotes Quoted:
Quoted:
35mm shooter...How many rounds did you have on the rifle before this happened? 60 rds the first time I shot it, just 5 rounds this time Damn. I have one of the pre production guns and have had zero issues. Me thinks they made sure the pre pro's and T&E rifles were fine and then maybe rushed to fill the rest of the orders? |
|
[#19]
Quoted:
Damn. I have one of the pre production guns and have had zero issues. Me thinks they made sure the pre pro's and T&E rifles were fine and then maybe rushed to fill the rest of the orders? View Quote View All Quotes View All Quotes Quoted:
Quoted:
Quoted:
35mm shooter...How many rounds did you have on the rifle before this happened? 60 rds the first time I shot it, just 5 rounds this time Damn. I have one of the pre production guns and have had zero issues. Me thinks they made sure the pre pro's and T&E rifles were fine and then maybe rushed to fill the rest of the orders? Certainly seems that way. So far as I can tell issues have been limited to: 1) Improper/no weld on action spring thingy 2) Undersized/out-of-spec pins on extractor So anyone who buys an RDB, check those things! Mine (series number in the 600s) doesn't have either issue. |
|
[#20]
kel-tec is not Agun for people that don't know how to take them apart and polise them up so they have A very smooth action
|
|
[#21]
Quoted:
kel-tec is not Agun for people that don't know how to take them apart and polise them up so they have A very smooth action View Quote There is no situation I'd allow myself to be in where one purchases a new firearm and has to detail strip and polish it for it to have a smooth action in order to function. That's just real retarded and unacceptable. |
|
[#22]
Quoted:
Certainly seems that way. So far as I can tell issues have been limited to: 1) Improper/no weld on action spring thingy 2) Undersized/out-of-spec pins on extractor So anyone who buys an RDB, check those things! Mine (series number in the 600s) doesn't have either issue. View Quote View All Quotes View All Quotes Quoted:
Quoted:
Quoted:
Quoted:
35mm shooter...How many rounds did you have on the rifle before this happened? 60 rds the first time I shot it, just 5 rounds this time Damn. I have one of the pre production guns and have had zero issues. Me thinks they made sure the pre pro's and T&E rifles were fine and then maybe rushed to fill the rest of the orders? Certainly seems that way. So far as I can tell issues have been limited to: 1) Improper/no weld on action spring thingy 2) Undersized/out-of-spec pins on extractor So anyone who buys an RDB, check those things! Mine (series number in the 600s) doesn't have either issue. Have you heard of issues with the pin other than mine? |
|
[#23]
Quoted:
Have you heard of issues with the pin other than mine? View Quote View All Quotes View All Quotes Quoted:
Quoted:
Quoted:
Quoted:
Quoted:
35mm shooter...How many rounds did you have on the rifle before this happened? 60 rds the first time I shot it, just 5 rounds this time Damn. I have one of the pre production guns and have had zero issues. Me thinks they made sure the pre pro's and T&E rifles were fine and then maybe rushed to fill the rest of the orders? Certainly seems that way. So far as I can tell issues have been limited to: 1) Improper/no weld on action spring thingy 2) Undersized/out-of-spec pins on extractor So anyone who buys an RDB, check those things! Mine (series number in the 600s) doesn't have either issue. Have you heard of issues with the pin other than mine? Yes, I'm aware of one reddit user and two people on ktog reporting the same issue. |
|
[#24]
Does anyone have any detailed photos of the problem? I mean, where the weld marks ought to be located, and where they
would not be? I am going to inspect my RDB, but am not really certain where to look. Thanks. |
|
[#25]
Quoted:
Certainly seems that way. So far as I can tell issues have been limited to: 1) Improper/no weld on action spring thingy 2) Undersized/out-of-spec pins on extractor So anyone who buys an RDB, check those things! Mine (series number in the 600s) doesn't have either issue. View Quote View All Quotes View All Quotes Quoted:
Quoted:
Quoted:
Quoted:
35mm shooter...How many rounds did you have on the rifle before this happened? 60 rds the first time I shot it, just 5 rounds this time Damn. I have one of the pre production guns and have had zero issues. Me thinks they made sure the pre pro's and T&E rifles were fine and then maybe rushed to fill the rest of the orders? Certainly seems that way. So far as I can tell issues have been limited to: 1) Improper/no weld on action spring thingy 2) Undersized/out-of-spec pins on extractor So anyone who buys an RDB, check those things! Mine (series number in the 600s) doesn't have either issue. I have an RDB. Does anyone have some pictures pointing out what to check? I'm honestly not sure what you guys are talking about. |
|
[#27]
Quoted:
2) Undersized/out-of-spec pins on extractor: Make sure the pin on your bolt that holds the extractor in doesn't move around too easily-- it should require some force to remove it. In a few cases it seems like either the pin was too small or the hole too large, and the pin walked out. View Quote My new pin is on the way. KT says the new ones have divots |
|
[#28]
Quoted:
My new pin is on the way. KT says the new ones have divots View Quote View All Quotes View All Quotes Quoted:
Quoted:
2) Undersized/out-of-spec pins on extractor: Make sure the pin on your bolt that holds the extractor in doesn't move around too easily-- it should require some force to remove it. In a few cases it seems like either the pin was too small or the hole too large, and the pin walked out. My new pin is on the way. KT says the new ones have divots Like detents? Hmm, perhaps I should see if I can order some, mine is cylindrical. |
|
[#29]
Quoted:
1) Improper/no weld on action spring thingy: On the very front of your bolt carrier (where the piston contacts it), there should be three machined notches-- two that the front of the charging handle drops into when folded (which one of the two depending on which side it's on), and another slightly further back, on the top. That top one is there so that a weld can be made between the carrier body and a little cup inside of the carrier that the front of the action spring bears on. In two cases I'm aware of that weld wasn't there, and the spring popped out of the front of the carrier. Below is a picture of one of these after Kel tec repaired it: http://i.imgur.com/qW3YlrZ.jpg On properly done RDBs that weld should be done before parkerizing, so it will look cleaner than that in the above image. 2) Undersized/out-of-spec pins on extractor: Make sure the pin on your bolt that holds the extractor in doesn't move around too easily-- it should require some force to remove it. In a few cases it seems like either the pin was too small or the hole too large, and the pin walked out. View Quote Okay. I'm about to pull out my RDB and look at it. Where exactly is the weld marking shown? I'm still not certain I understand the area you're describing. |
|
[#30]
Okay, after looking at mine, I kind of understand. My bolt carrier has the three notches, but I cannot see any welding. Is it hard to see
if parkerized over it? Is the welding done over the top of that top notch? |
|
[#31]
Quoted:
I have an RDB. Does anyone have some pictures pointing out what to check? I'm honestly not sure what you guys are talking about. View Quote View All Quotes View All Quotes Quoted:
Quoted:
Quoted:
Quoted:
Quoted:
35mm shooter...How many rounds did you have on the rifle before this happened? 60 rds the first time I shot it, just 5 rounds this time Damn. I have one of the pre production guns and have had zero issues. Me thinks they made sure the pre pro's and T&E rifles were fine and then maybe rushed to fill the rest of the orders? Certainly seems that way. So far as I can tell issues have been limited to: 1) Improper/no weld on action spring thingy 2) Undersized/out-of-spec pins on extractor So anyone who buys an RDB, check those things! Mine (series number in the 600s) doesn't have either issue. I have an RDB. Does anyone have some pictures pointing out what to check? I'm honestly not sure what you guys are talking about. Some pics here: http://www.thektog.org/forum/f119/update-my-broken-bolt-carrier-kel-tecs-fix-266656/ |
|
[#32]
Okay. I think I know where the weld should be. It should be in that top notch, right? Like near the orange coloring in the picture
above, right? Well, how can I tell if mine is welded or not? I'm looking at it, but cannot tell. |
|
[#33]
Meh...Kel Tec long guns are disappointing. Get them to buy it back and buy the DTA bullpup instead.
|
|
[#34]
|
|
[#35]
I'll never buy another keltec.
I've had a few different ones over the years, more problems than just about any guns I've ever had except for a Springfield Armory .45. Got rid of that POS too. |
|
[#36]
Quoted:
Unfortunately the lighting in my house sucks, this is the best I can do: http://i.imgur.com/EEoRmBn.jpgp View Quote Hmm. I don't see the actual weld marking. I mean, I see the bolt carrier piston rod thing, and the three notches on it, but I don't see the actual welding. |
|
[#37]
Quoted:
I'll never buy another keltec. I've had a few different ones over the years, more problems than just about any guns I've ever had except for a Springfield Armory .45. Got rid of that POS too. View Quote My RDB hasn't had any issues yet, and I've put a few hundred rounds through mine. I'm very happy with it. So far, it's been able to keep up with my Tavor in terms of performance and handling. |
|
[#38]
Quoted:
Hmm. I don't see the actual weld marking. I mean, I see the bolt carrier piston rod thing, and the three notches on it, but I don't see the actual welding. View Quote View All Quotes View All Quotes Quoted:
Quoted:
Unfortunately the lighting in my house sucks, this is the best I can do: http://i.imgur.com/EEoRmBn.jpgp Hmm. I don't see the actual weld marking. I mean, I see the bolt carrier piston rod thing, and the three notches on it, but I don't see the actual welding. The weld is on the top. Notice how the top notch isn't square-- the weld isn't like a weld in a corner, where a lot of filler is used, it's to join the cylindrical body of the bolt carrier with a cup-shaped part inside of it. Heat is simply applied to the top notch until the metal flows and the two parts join. If your notch is as flat bottomed and square as the side notches, you have a problem. If it looks melted like that it's fine. |
|
[#39]
Is there any way to post pictures of mine here from my iPhone?
|
|
[#40]
|
|
[#41]
|
|
[#44]
Being left handed, I've been looking at these hard! I appreciate you posting your experiences with it and may pick up a later production one once all the bugs have been worked out.
|
|
[#45]
UPDATE 2
When I got the rifle back from the repair... I noticed a screw on the top picatinny rail was riding high. After the trip to the range I had to tighten down 3 loose screws from the picatinny rail. The rail was loose enough to move around about a millimeter. Another small QC thingy... |
|
Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. One new winner* is announced every week!
You will receive an email every Friday morning featuring the latest chatter from the hottest topics, breaking news surrounding legislation, as well as exclusive deals only available to ARFCOM email subscribers.
AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types.
From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm.
Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more.
Copyright © 1996-2024 AR15.COM LLC. All Rights Reserved.
Any use of this content without express written consent is prohibited.
AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own.