Plastic Nubbin Results

[Gecko]

Ok guys lets get Tom some feedback about the nubbins
Mod please sticky this
Gun type: Emag
Barrel Used: Stock Barrel
Bolt: Foamy
Loader: Warp/12V Rev
Air system type: Microreg 68 4500
Air system input: ~850
Installed: 10/28/01
Approx number of shots: 2000
Paint used: Proball Devil
Bore size: ~689
Paint breakage
Before: not many
After: same
Any problems: Gun bolt stuck occasionally for the first 500 rnds. Seems fine now
Anything need to be added?
Gecko

[Gecko]

Gun type:
Barrel Used:
Bolt:
Loader:
Air system type:
Air system input:
Installed:
Approx number of shots:
Paint used:
Bore size:
Paint breakage
Before:
After:
Any problems:

[Gecko]

up

[SuperOrangeTicTac]

Gun type: Classic s/f
Barrel Used: Custom Products 12"
Bolt: ANS foamie 10 hole (forget name)
Loader: 12v intellifeed revvy
Air system type: NitroDuck 68/3000
Air system input: 850
Installed: 11/13
Approx number of shots: 200
Paint used: Team Colors
Bore size: ???
Paint breakage
Before: none
After: none
Any problems: The first 30 shots went every where, they were spinning like crazy. Then they shot straight.

[Dubstar112]

Gun type: 68 Classic PF
Barrel Used: Taso Pro Series 8.5
Bolt: Stock AGD, not long nose
Loader: Warp and Revvy combo
Air system type: Flatline
Air system input: 750
Installed: 11/5
Approx number of shots: 700
Paint used: Team Colors
Bore size: Med.
Paint breakage
Before: 5 of a Case:2000:
After: None
Any problems: Nubbins seemed to slipp of front o-ring, but didnt affect performance.

You know how much of a pain that was to bold everything like that?.. lol

[AGD]

Great guys thanks!! Very professional!!

AGD

[Gunga]

Gun type: Automag Classic w/Powerfeed
Barrel Used: Freak
Bolt: Extended nose foamie
Loader: Intellifed 12v (x-board) Revvie
Air system type: Pure Energy 4.5k psi 68 ci
Air system input: 850 psi
Installed: 11-9-01
Approx number of shots: 1700
Paint used: Big Ball
Bore size: .687
Paint breakage: ~3, down the barrel, not near the nubbin
Before: once in a while
After: no real change
Any problems: Nope


Here's a link to a posting I did with further feedback on the plastic nubbins. It has some 'before & after' pics. http://www.automags.org/forums/showt...threadid=16547

[neoxone]

Gun type: E-mag
Barrel Used: J&J 2-piece, 10"
Bolt: Stock
Loader: 12v Revvy
Air system type: NitroDuck 68/3000 preset
Air system input: 850
Installed: 11/11/2001
Approx number of shots: 1500
Paint used: ZAP performance plus
Bore size: ~.68
Paint breakage
Before: 2-3 per case
After: So far, NONE
Any problems: Had to shave a little off the "bump" on the opposite side of the nubbin to get it to flex and let paintballs pass without breakage( in addition to the "shaving" done prior to being sent to me )

Also See:
The Plastic Experience

[DC Nelson]

Gun type: Automag Classic
Barrel Used: Old style dye ss (only muzzle porting)
Bolt: Standard
Loader: 200 round box
Air system type: Nitro Duck tuffskin 3000psi
Air system input: 800psi
Installed: 11/6
Approx number of shots: 200
Paint used: Marbs
Bore size: Anyone know the old bore size?
Paint breakage
Before: Broke 1 ball once
After: None
Any problems: We had to sand down where the oring closest to the barrel is, to make sure it didnt pinch the oring in the body. The nubbin needs to be a bit longer in the back to keep the rear oring on it.

DC

[ProjectMag]

Gun type: ReTroMag
Barrel Used: 12" Boomstick .688
Bolt: Standard
Loader: Warp with 12 volt Revy
Air system type: Raptor 68/4500
Air system input: 950 psi
Installed: 11/10
Approx number of shots: 1300
Paint used: Brand X
Bore size: N/A
Paint breakage
Before: only once when my P nubbin broke
After: couple times (could have been the paint)
Any problems: no problems

[RobAGD]

Gun type: Emag
Barrel Used: PMI Perfect Cermic 14"
Bolt: AGD Delrin NEW
Loader: Warp/Revy
Air system type: AGD 4500/68 Flatline
Air system input: 800
Installed: World Cup
Approx number of shots: 6000
Paint used: HellFire, Inferno, All Star
Bore size: 689
Paint breakage 2 Hell Fire End of barrel, 2 All Star EOB
Before:Depends on Paint used
After: About the Same
Any problems: None, this one is as I got it from teh factory

Gun type: Emag
Barrel Used: PMI Perfect Cermic 12"
Bolt: AGD Delrin Gen1
Loader: Warp / Revy
Air system type: 3000/68 Flatline
Air system input: 800
Installed: 11/11/01
Approx number of shots: 1500

For about 1000 of this it was Loaned to a Kid from DC ( sorry I dont recall your name off hand) He used it in the Big Game at Pevs. I am gues he shot over 1000, and I shot about 500 at the shop the night before.

I know he broke some paint but no real details, but I belive it was Operator Error.

This Nubbin I need to shave off some flashing so it would return after a ball passed. The nubbin was a tad fat at the nub end and was hanging a bit in the grove.

-Robert

[MikeCouves]

Well one other thing to remember is durability. That's one of the problems I encounter with my V/P nubbins. When they are old they can rust and crack with a little poke. Sometimes you bend them too far by accident and SNAP!, there goes your nubbin, and now you have to go find another one.

People should see how much the nubbins can take. By bending them in the warm, cold, trying to squish them, etc. I think this would show how the new nubbins and more durable then the old.

[PsychoMag]

Gun type: RT Pro
Barrel Used: 14" Freak
Bolt: Diffuser
Loader: Ricochet 2k
Air system type: 68/4500 Tuffy
Air system input: 800psi
Installed: 11/10 Speedball team practice
Approx number of shots: 3000
Paint used: ProBall, ZAP Perf Plus, 32*
Bore size: .689, 32* .693
Paint breakage: None on Proball,ZAP, a few on 32*
Before: No breaks
After: a few breaks on 32*
Any problems: I sliced some 32* paint at the start, then she shot darts all day, straight & clean. I modified mine a bit, the nubbin seemed a bit "pointy". Overall, they worked fine, they were a bit short for my freak back.

[X-Plosive]

Gun type: Automag with retro valve
Barrels Used: DYE Boomstick, LAPCO BigShot
Bolt: Long Nose bolt
Loader: 12v revvy with intellifeed to z-grip
Air Sysytem tpye: AA Raptor rex 68cu 4500 psi
Air System Input: 850 psi
Installed: 11/14 just for fun
Approximate number of shots: 600 total, 300 in each barrel
Paint used: Marballizer, JT, and inferno
Bore Size: Who knows? Who cares? but they are all about .688 or .687
Paint Breakage: NONE
Any problems: Well the nubbin on the DYE boomstick didn't
appear to do all that much

and here are some more oobservations


I tested the nubbins on my DYE boomstick first. The Boomstick had the perfect size barrel o-ring slots. They were nice and narrow. Therefor I didn't experience the problem most others did with the nubbin being to short and the o-ring creeping down. I did however experience once problem. I tested this with 3 types of paint. some fresh Marballizer. some older JT paint, and older inferno. All 3 paint shot well with no double feeds but that was surprising. The nubbin barely sticks into the bore of the DYE boomstick. I did notice it did have some resistance and after about 300 shots there was 0 wear on the nubbin. The boomstick is very different to most barrels in the breach. Rather than being flat it is concave and acts as it's own ball detent with medium paints. I am going to test it with hellfire next time and see what happens. After the shooting test I grew suspicious of the boomstick. I took one marballizer ball and put it in the barrel. I then realized that the nubbin did have SOME effect but by applying little pressure I was able to get it past the nubbin and when I blew harder it flew out the barrel. This paint might of been a bit too small for the boomstick with is a .678 bore(calipers). Overall the boomstick seemed to handle it very well and DID NOT double feed so I was happy. I replaced the nubbin with the 3 others and I came out with the same results every time. I am still uneasy about that indent where the breach in the barrel meets the feed port.



Now I tested it on the LAPCO Bigshot. While the barrel o-ring slots are much larger on this barrel, the nubbins still weren't too short but just to be safe I added an extra o-ring. I did notice that after 300 shots there was a little wear but nothing serious and in the LAPCO there is no concave shape where the breech hole is. It's nice and flat. There were no double feeds and eveything went smoothly with all 3 paints. I was pleased. I blew hard and still the nubbin held the ball in place. Once I pushed the ball past the nubbin and blew surely enough it popped out the other side. Both barrel are near the same bore. I think LAPCO's for mags are a smaller bore for some reason when compared to LAPCO's for spyder. But that's a completely different story. Here is my feed back. I am a little confused though. From the pics I saw some people were having obvious problems with the nubbin being too short. Did I get the second batch of nubbins? I received mine in the mail yesterday and I sent my envelope in the day after the contest was announced but I don't live to close to IL.


So overall, in the DYE, the nubbin didn't seem to do all that much but it was still okay. In the LAPCO the nubbin was perfect and there were no real flaws. I didn't even need the extra o-ring but I thought I might as well seeing how I had a couple parts kits laying around.

[hitech]

This isn't a report on the new nubbins, but...

Has anyone at AGD considered using a wire "holder" with a plastic ball "tip" for a nubbin? Seems to be that would work well, but then I don't design paintball guns for a living. Just curious.