Help with extending the length of my barrel!

[proffrink]

Yeh. Technically it's where the bit that contacts the BB ends (just like a real barrel and bullet), but realistically people just refer to the whole tapered edge as 'the crown'.

Probably not the best example as this barrel is basically crowned twice (the whole front being recessed slightly), but hey you get the idea. The firearms definition is very clear that the crown is where the bore ends though.

 

[ImTriggerHappy]

Crowning on an airsoft gun is where the end of the barrel is turned perfectly square to the inner bore.

It is then tapered inwards towards the inner bore, either with a straight chamfer or a radius. Then its polished to remove any burrs.

Its done so when the projectile and gases leave the end of the barrel it does so symmetrically because its square and the taper allows the gases to disperse in an even cone shape behind the projectile.

Any deviation of pressure on the projectile can cause accuracy issues.

This is mainly for real guns using a rifled barrel but can have a beneficial affect to a lesser degree on an airsoft gun.

People who cut barrels with a hacksaw will never get them totally square so the projectile and gases will always leave one side of the barrel first and the bb will generally curve more.

 

[proffrink]

ur l8 m8

 

[ImTriggerHappy]

ur l8 m8

Maybe but I can and have actually done it so you can kiss my lily white ass. ?
Rock-climby-Dave is right though you might as well just buy a new one the right length. I would charge more to do it than a PDI barrel costs because its a crap job to do.

 

[proffrink]

Also, PDI are doing free shipping for a while! http://www.x-fire.org/etop/01.html

 

[KiwiBanany]

Also, PDI are doing free shipping for a while! http://www.x-fire.org/etop/01.html

so the patriot 1 205mm barrel will work? Cheers

 

[proffrink]

Yeh, TM hop windows are basically universal amongst AEGs at this point so just pick the size that you want. Certainly the G&G will accept TM-spec barrels.

Remember you will need to pay VAT and Parcelforce's stupid service charge. Not duty though as that only kicks in over £150 or something(?). So you're looking at £8 + 20% of your item ontop of what you pay, but PDI barrels are basically the best out there so it's worth it.