CRANE Upgrade Kit & MP Tested Bolts

[C4IGrant]

One of the weakest links in the AR system is the extractor. Not enough tension and the weapon will not run properly. Crane came up with a rebuild kit for worn out springs and inserts along with an O-ring to help with extraction.

I have also installed this upgrade kit to the CMT MP tested bolts we sell.

Please e-mail us with any questions. sales@grtactical.com



C4



Crane O-Ring Upgrad Kit is available here: http://www.gandrtactical.com/cleaning.htm

http://www.gandrtactical.com/images/archive/STAG/Crane%20upgrade%20kit.JPG


CMT MP Tested Bolt w/Crane Upgrade Kit installed is available here: http://www.gandrtactical.com/cmt.htm#pMPI

http://www.gandrtactical.com/images/archive/STAG/MP%20bolt%20with%20crane%20O-Ring%20and%20black%20insert.JPG

[VA_Dinger]

Grant, I'm going to be calling Monday to order two of them.

[Rmplstlskn]

Me too... but need to add some stuff to make shipping more beneficial...

Rmpl

[C4IGrant]

Roger guys, just give me a call.



C4

[hetfield]

Forgive my ignorance, but what is the little black jobby on the end?

[C4IGrant]

Forgive my ignorance, but what is the little black jobby on the end?

That is a Crane O-Ring that enhances extraction.




C4

[Treehopr]

What about on the other end? :D

In the first picture?

"CRANE O-Ring, 5 Coil spring, and Black Insert"

Follow link above picture.

[hetfield]

I'm slow, I understand what it's for now.