Impulse Porting System for Glock Pistols

$250.00
(4 reviews) Write a Review

The Maple Leaf Firearms Impulse Porting System for Glock handguns is our turnkey recoil reduction solution. This system maintains your weapons original form factor and reliability, all while significantly reducing felt recoil and muzzle rise.

The Impulse Porting System works by directing a portion of the energetic gasses generated by the burning propellent through precision drilled holes in the barrel, allowing these gasses to escape through the matched windows machined into the slide. The mass flow of this expanding gas exerts a strong downward force component on the firearm, reducing felt recoil and ensuring your slide tracks flatter, allowing for faster, more accurate follow up shots.

The Impulse Porting System is designed such that there is minimal muzzle velocity drop with all common range and duty grade ammunition (see data below), and minimal disruption of your natural sight picture. Unlike many other designs where vertical ports direct gas straight up through your sight picture, the Maple Leaf Impulse Porting System directs the gas jets out in a 60 degree included angle "V" pattern, up and away from the centerline of your slide, ensuring your target focused sight picture is not disrupted by flash or expanding gas.

The form factor and major edge contours of your slide remain unchanged, ensuring 100% backwards combability with any existing holsters, including duty grade retention systems like the Safariland ALS system.

 

This service requires the customer to send both their slide and barrel to Maple Leaf Firearms for modification.

This service can be combined with any of our optic cut services. If you'd like to add the Impulse Porting System to our Duty Cut or Carry Essentials Packages, please select the "Duty Cut + Impulse Porting Package" or the "Carry Essentials + Impulse Porting Package" products, respectively.

Please note: Slides that have already been modified with any top surface design feature (top window, serrations, etc) either by us or another shop, are not able to be retrofitted with the Impulse Porting System.

 

Muzzle Velocity Data (Collected with Garmin Xero with accuracy +/- 5 fps)

Test Firearm: Glock 19Gen5 - Stock (non-Ported) OEM 19Gen5 Barrel vs OEM 19Gen5 Barrel with Maple Leaf Impulse Porting

Test Ammunition (Average Muzzle Velocity over 10 rounds)

 - Blazer 115gr / Avg MV Stock Barrel: 1091.9 fps / Avg MV Impulse Ported Barrel: 1073.1 fps (Loss of 18.8 fps)

 - Magtech 115gr / Avg MV Stock Barrel: 1149.4 fps / Avg MV Impulse Ported Barrel: 1128.3 fps (Loss of 21.0 fps)

 - TulAmmo 115gr / Avg MV Stock Barrel: 1143.9 fps / Avg MV Impulse Ported Barrel: 1124.3 fps (Loss of 19.6 fps)

 - Blazer 124gr / Avg MV Stock Barrel: 1109.1 fps / Avg MV Impulse Ported Barrel: 1087.1 fps (Loss of 22.0 fps)

 - Armscor 147gr / Avg MV Stock Barrel: 957.1 fps / Avg MV Impulse Barrel: 934.20 fps (Loss of 22.9 fps)

 - Speer GDHP 124gr+P / Avg MV Stock Barrel: 1177.5 fps / Avg MV Impulse Barrel: 1146.1 fps (Loss of 31.3 fps)

 

 

 

4 Reviews

  • 5
    Impulse Porting

    Posted by Howard Mozley on Nov 22nd 2024

    Great product. Great company to deal with. “I” feel it tightened my shot groups tremendously.

  • 5
    Top Notch!

    Posted by N. Vang on Sep 30th 2024

    Slide and barrel came back beautifully done along with them both Nitride! Turnaround time was way much sooner than what the site stated. Very happy how my slide turned out. Definitely recommend and won't be my last doing business with them.

    Do NOT hesitate!

  • 4
    Impulse Porting System

    Posted by Monty Mozley on Sep 21st 2024

    I’m pleasantly satisfied with the quality of the work and the overall service. I am having some function issues with pistol however after having it ported. The folks at Maple Leaf are working with me and we believe it is a low quality practice ammo problem. Not anything due to their work. Overall, Very Happy with the product and company. Would not hesitate to recommend them to a friend or colleague.

  • 5
    Porting, carry cuts, and coating

    Posted by JR on Jul 19th 2024

    I first sent my Glock 19 to get milled for an rmr and the enhanced cuts, amazing. Then saw porting was an option sent it back immediately and had the slide coated burnt bronze to match my rmr… and my god a work of art! Do not hesitate send it in now!