have been doing a lot of research lately for my competition PCC. Thinking that I have everything done and ready, I find out there is much more to be done.
My current configuration is a 18.6” FX-9 with the following upgrades,
• Sig Romeo 3XL with co-witness riser
• Troy BUIS
• Matador Hammerhead .223 opened up to 9mm due to the threading of the barrel, many thanks to Forge & Facet Jewelers for doing the work.
• Techwell magwell
• Magpul Glock 17 10/27 Magazines
• Magpul M-LOK Offset Light/Optic Mount
• Geissle G2S 2 Stage Trigger
• Magpul CTR Carbine Stock – Mil-Spec
The next step was to figure out the buffer system I wanted to reduce recoil. Here are the most common systems used from least to most expensive,
• Using a heavier buffer with a flat buffer tube spring ($100)
• Odin Works Adjustable Buffer ($150)
• MBX Air Buffer Recoil Reduction System ($275)
• KYNSHOT AR15 9mm Recoil Buffer HD ($300)
• JP 9mm Silent Captured Spring Gen 2 Short Stroke ($500)
• Scheel MFG Roller-Delayed Buffer System- Complete System Gen 2 ($550)
So, what to choose? Cheapest, Adjustable, Air, Hydraulic, Captured, or Roller? They all work, but which one will work best for you?
All do basically the same thing, they all control the smoothness of the buffer movement and delay the action a slight bit for less recoil and better reliability while at the same time giving more stability and a faster follow up shot.
After hours of research, I decided on the Kynshot Hydraulic buffer, lots of good reviews, plus a 1 million round warranty on the buffer.
https://youtu.be/hstiJjbsoUg?si=Rv5c8ZwqaTDG1jxL
Most people would be happy just adding this buffer without much other modifications, I’m not just anybody. If I make modifications, I go 100% of the way. After some more research I found that I can enhance this buffer system more effectively by adding the following to the system,
• A flat buffer spring
• 2x, 2.5oz weighted spacers (.75” each) in front of the buffer for more weight and making it a shorter stroke
• AR10 8.5” buffer tube to allow for the 2 weight that add 1.5” to the buffer
All the parts have been ordered, and I will see how well this system works after I start tweaking all the parts. I will initially just add the hydraulic buffer before adding any of the enhancements to see how each modification works.
After4 everything is done and tested, the last thing to be done is to convert the FX-9 to a 10.5” barrel.
My current configuration is a 18.6” FX-9 with the following upgrades,
• Sig Romeo 3XL with co-witness riser
• Troy BUIS
• Matador Hammerhead .223 opened up to 9mm due to the threading of the barrel, many thanks to Forge & Facet Jewelers for doing the work.
• Techwell magwell
• Magpul Glock 17 10/27 Magazines
• Magpul M-LOK Offset Light/Optic Mount
• Geissle G2S 2 Stage Trigger
• Magpul CTR Carbine Stock – Mil-Spec
The next step was to figure out the buffer system I wanted to reduce recoil. Here are the most common systems used from least to most expensive,
• Using a heavier buffer with a flat buffer tube spring ($100)
• Odin Works Adjustable Buffer ($150)
• MBX Air Buffer Recoil Reduction System ($275)
• KYNSHOT AR15 9mm Recoil Buffer HD ($300)
• JP 9mm Silent Captured Spring Gen 2 Short Stroke ($500)
• Scheel MFG Roller-Delayed Buffer System- Complete System Gen 2 ($550)
So, what to choose? Cheapest, Adjustable, Air, Hydraulic, Captured, or Roller? They all work, but which one will work best for you?
All do basically the same thing, they all control the smoothness of the buffer movement and delay the action a slight bit for less recoil and better reliability while at the same time giving more stability and a faster follow up shot.
After hours of research, I decided on the Kynshot Hydraulic buffer, lots of good reviews, plus a 1 million round warranty on the buffer.
https://youtu.be/hstiJjbsoUg?si=Rv5c8ZwqaTDG1jxL
Most people would be happy just adding this buffer without much other modifications, I’m not just anybody. If I make modifications, I go 100% of the way. After some more research I found that I can enhance this buffer system more effectively by adding the following to the system,
• A flat buffer spring
• 2x, 2.5oz weighted spacers (.75” each) in front of the buffer for more weight and making it a shorter stroke
• AR10 8.5” buffer tube to allow for the 2 weight that add 1.5” to the buffer
All the parts have been ordered, and I will see how well this system works after I start tweaking all the parts. I will initially just add the hydraulic buffer before adding any of the enhancements to see how each modification works.
After4 everything is done and tested, the last thing to be done is to convert the FX-9 to a 10.5” barrel.
