(Discontinued) PolarStar Concave Hop Up Spacer[M07G09][06446 / Model-PCS]
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Replace your original hop up spacer with this Polar Star Concave Hop Up Spacer. The concave shape hop up spacer is designed to provide 2 points of contact on the top of the BB to provide a more uniform backspin on the BB to provide the straightest possible BB flight.
- Manufacturer: PolarStar
- Color: Black
- Material: Plastic
- Package Includes: One (1) Spacer
Concave hop up spacer/nub. The concave shape is the same contour as a BB this allows the nub to protrude through the barrel window with a concave shape that will fit perfectly over your BB. This design will make left or right spin unlikely because the nub should center the BB and only apply back spin. A copy of the SCS nub from Shredder (E.D.G.I.) Seems to work pretty good for me so far with a systema bucking and a tight bore.
1. No left or right spin should be possible if set up correctly (see shredders webpage)
2. Should allow for high accuracy a fine adjustability
1. Make sure your hop up (where the strike chamber pushes the nub through and into the barrel) and your barrel window (rectangular hole in your barrel) are rectangular (not rounded) and will allow the nub to fit through. Test this before you put everything together. This may require some fine filing. (see shredders webpage if you need help) Not realy a con just make sure when buying those parts or get a precision file set.
I'll give it 5 stars
i bought this Item on the terms that its pretty much a SCS nub and it is. I mainly purchased it for a test in my JG BAR10 and with the hopup arm mod for the nub i have to say that my bar10 at 300' im able to hit a telephone pole so a man sized target is easy. My bar10 is shooting 575 w/ .2s but of course i use .3s for penetration and stable bb flight. I highly recommend this nub for anyone looking to try a build or wanting to "test" the waters on something other than your ordinary nub.
On a side note: I wouldn't recommend this to just any "noob" joining the game but for someone who knows hopup units and is a little more advanced in the inner workings of airsoft. Also match this with shimming your hopup arm,inner barrel,and a good bucking will bring great results
gives you better contact on the bb for improved bb flight
not that expensive
Well its not really a con but you have to make sure you mod your hopup unit for AEG or Sniper as well make sure the hopup cut on your inner barrel is wide and deep enough for the nub to fit.