Longer glock barrels

[MMETALMANN]

I am probably asking a terribly obvious question, but can you put a g17 barrel in a g19? Outside of aesthetic choices, what are the possibilities/ dangers of doing this?

[iainmcphersn]

No the barrels are not compatible. You can use a G19 barrel in a G26. You can also use a G34 barrel in a G17, but you can't use a G17 barrel in a G19.

[Nik Habicht]

Bottom line -- different locking blocks and barrel lugs make that swap non-feasible....

[MMETALMANN]

Obviously I am missing something in the chemistry of these variations. OR, I am not understanding the geometry of the g19 and g17 frames. I completely believe what you say, I guess the "why" in me wonders why a g19 can't just have a 1.25" longer barrel ? Especially since there are aft market barrels that have threaded muzzles to accept suppressors. Why can't it just be extended?

[a.roberts]

Lone Wolf makes an extended barrel for a Glock 19.

My link

The locking block for the 17 and for the 19 are different. So the barrel surfaces that interface with the locking block have to be different as well.

[Duane Thomas]

As has been stated, the locking blocks, and corresponding cam surfaces on the barrel underlugs, are identical between the G17 and G34, and identical between the G19 and G26. However they are NOT identical between the G17/G34 and G19/G26. Bottom line: you can put a G34 barrel in a G17, and you can put a G19 barrel in a G26, but you can't put a G17 barrel in a G19.

Just divide the four guns into two groups in your mind, based on size: the two larger guns (G17 and G34) are grouped together, the two smaller guns (G19 and G26) are also grouped together. The larger gun in each group can switch its barrel into the smaller gun in its group, but you can't switch any barrel from Group 1 into any gun in Group 2 or vice versa.

[usmc1974]

I have to ask, Why not just buy a Glock 17?