:: P290 Installation Instructions

P290 Installation Instructions

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How to install a "RTK Profile" trigger in your P290

  • Caution!  Should be installed by a Experienced Gunsmith.

    NOT a do it yourself amateur gunsmithing project!

  • Unload your Sig

    Sig P290 RTK Profile trigger install pic 1
  • Field Strip

    Sig P290 RTK Profile trigger install pic 2
  • Drive out pin at bottom of grip.

    Sig P290 RTK Profile trigger install pic 3
  • Pull hammer group up.

    Sig P290 RTK Profile trigger install pic 4
  • Hammer group and ejector removed from stock.

    Sig P290 RTK Profile trigger install pic 5
  • Link-bar separated from hammer group.

    Sig P290 RTK Profile trigger install pic 6
  • Use 3/32" nail set as wedge to remove link-bar pin from trigger.

    Sig P290 RTK Profile trigger install pic 7
  • Link-bar removed.

    Sig P290 RTK Profile trigger install pic 8
  • Drive trigger pin out.

    Sig P290 RTK Profile trigger install pic 9
  • Trigger group and new "Sig P290 RTK Profile" adjustable trigger.

    Sig P290 RTK Profile trigger install pic 10
  • Position new trigger. Start trigger pin in from one side. Start 1/16" punch in from other side.

    Sig P290 RTK Profile trigger install pic 11
  • Add trigger spring and capture with punch.
    Push pin in, withdrawing punch.

    Sig P290 RTK Profile trigger install pic 12
  • Pry forward on spring for the final push to seat pin.

    Sig P290 RTK Profile trigger install pic 13
  • Spring in place.

    Sig P290 RTK Profile trigger install pic 14
  • Use 3/32" nail set as wedge to give clearance to install link-bar in trigger.

    Sig P290 RTK Profile trigger install pic 15
  • Link-bar in hammer group.

    Sig P290 RTK Profile trigger install pic 16
  • Add ejector to hammer group and slide to bottom of stock.

    Sig P290 RTK Profile trigger install pic 17
  • Hammer group fully seated.

    Sig P290 RTK Profile trigger install pic 18
  • Trigger bar spring must be under bar.
    There is a small slot in bottom of bar.

    Sig P290 RTK Profile trigger install pic 19
  • Install pin at base of stock.

    Sig P290 RTK Profile trigger install pic 20

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How to install a Galloway Precision Hammer Spring in your Sig P290

  • This next series is how to change out your hammer spring. See above on how to remove hammer group from stock:
    Pull hammer back. Tensioning spring

    Sig P290 Galloway Precision Hammer Spring install pic 1
  • Capture spring with point of awl thru 1/16" hole.
    You must maintain pressure on awl for next few steps.

    Sig P290 Galloway Precision Hammer Spring install pic 2
  • Push hammer pin out. Remove hammer and firing pin disconnect.

    Sig P290 Galloway Precision Hammer Spring install pic 3
  • Using punch gently release hammer spring.

    Sig P290 Galloway Precision Hammer Spring install pic 4
  • Remove small pin sear. try not to displace spring in sear.

    Sig P290 Galloway Precision Hammer Spring install pic 5
  • Change spring.

    Sig P290 Galloway Precision Hammer Spring install pic 6
  • Use punch to tension spring and capture with a 1/16" punch thru hole in back strap.

    Sig P290 Galloway Precision Hammer Spring install pic 7
  • Replace sear and upper pin.
    Start lower pin thru link-bar disconnect.

    Sig P290 Galloway Precision Hammer Spring install pic 8
  • Add hammer.

    Sig P290 Galloway Precision Hammer Spring install pic 9
  • Add firing pin disconnect.

    Sig P290 Galloway Precision Hammer Spring install pic 10
  • Tap pin flush.

    Sig P290 Galloway Precision Hammer Spring install pic 11
  • Release hammer spring.

    Sig P290 Galloway Precision Hammer Spring install pic 12

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How to install a Galloway Precision Firing Pin Spring in your Sig P290

  • Press down on blocker and push forward on firing pin until you can slide firing pin stop up and out.

    Sig P290 Galloway Precision Firing Pin Spring install pic 1
  • Maintaining pressure down on blocker, firing pin and spring will slide out.

    Sig P290 Galloway Precision Firing Pin Spring install pic 2
  • Blocker removed showing blocker spring.
    Assemble in reverse.

    Sig P290 Galloway Precision Firing Pin Spring install pic 3


Note: When adjusting your "RTK Profile" there is only one reset click!

Notice of liability and warranty

Here at Galloway Precision we strive to provide quality US made products for savvy responsible firearms owners. Anytime you work on or clean your firearms you are the sole responsible party for safe handling of the firearm, read the owners manual and respect every firearm.

*Altering any product, firearms, cars, even clothes comes with risks so understand and accept we assume no liability for injury to the buyer or anyone residing with or operating with the buyer. The buyer is the sole responsible party for the use of their firearm with or without our parts.

*100% money back (less shipping) on all our products is offered by us against failure of our components or just displeasure our products did not meet your expectations or end needs. Buy and don't like it we will refund your purchase price minus shipping upon return, withing 30 days of purchase, of the complete unmodified parts in question. Refunds are issued within 5 business days of return and inspection in the form of a business check mailed to the customer.


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