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sheepherder · 11-18-2014, 10:09 AM

Yes, it's one style of 'Lahti' barrel with a spacer to adapt to the Luger barrel extension. The Lahti barrel thread is the same as the Luger, but longer (pic below; Lahti on top, Luger on bottom). This is an interesting adaptation, as the timing/headspace might need 'adjusting'. The extractor notch might need some filing as well. The Lahti extractor notch is on the side but wouldn't need any work, same for the accelerator cut on the opposite side. (The notch on the top of the Lahti barrel is for a loaded chamber indicator which was discontinued but the barrel cut remained).

I would be somewhat wary of the headspace issue, but it looks do-able. Never seen it before.

Edit: A quick comparison gives the dimensions shown below for the spacer. My Lahti barrels wouldn't quite screw into the Luger receiver all the way, the end of the Lahti barrel might need turning down a few thousandths. Might need some other work as well (re-chamber; trim to length; etc).

Spacer

~.162" thick
~.858" OD
~.706" ID [slip-on fit]

11-18-2014, 10:09 AM	#5
sheepherder Lifer Lifetime Forum Patron Join Date: Feb 2009 Location: ...on the 'ol Erie Canal... Posts: 8,197 Thanks: 1,416 Thanked 4,462 Times in 2,336 Posts	Yes, it's one style of 'Lahti' barrel with a spacer to adapt to the Luger barrel extension. The Lahti barrel thread is the same as the Luger, but longer (pic below; Lahti on top, Luger on bottom). This is an interesting adaptation, as the timing/headspace might need 'adjusting'. The extractor notch might need some filing as well. The Lahti extractor notch is on the side but wouldn't need any work, same for the accelerator cut on the opposite side. (The notch on the top of the Lahti barrel is for a loaded chamber indicator which was discontinued but the barrel cut remained). I would be somewhat wary of the headspace issue, but it looks do-able. Never seen it before. Edit: A quick comparison gives the dimensions shown below for the spacer. My Lahti barrels wouldn't quite screw into the Luger receiver all the way, the end of the Lahti barrel might need turning down a few thousandths. Might need some other work as well (re-chamber; trim to length; etc). Spacer ~.162" thick ~.858" OD ~.706" ID [slip-on fit] Attached Thumbnails __________________ I like my coffee the way I like my women... ...Cold and bitter...