Extending the barrel - anything to watch out for?

yegor

Member
Rating - 100%
5   0   0
Location
GTA
I need to extend the barrel on my 16" RRA ar15 by 3 inches to accommodate a fake can that I bought from spikes tactical, which otherwise hits the front sight.

What are the effects of a barrel extension on accuracy? The extended barrel's bore will have to be slightly bigger than the actual barrel (just to be safe), its also not going to be threaded, so I figured once the bullet + gasses enter this slightly enlarged space of the barrel extension, they can affect the ballistic properties of the flight path of the bullet.

Any input will be appriciated.
 
you are right, near surface does create enormous drag. your extension will slow bullets down and if there is any mis-alignment between bore and extension there will also be change in POI or possible degradation of accuracy.
 
Back
Top Bottom