Any one use an EFK RSA for a Glock 20?

[NOI]

An acquaintance in Montana suggested these to me yesterday. He hunts over there with Underwood 220gr Hard Cast primarily, and and said these perform well in the reduction of felt recoil. Just curious if anyone had any additional experience.

I ordered one for testing. Here's the product description from my receipt:

Product ID: GK20DA
Product Name: For Glock 20, 10mm, 400 Corbon GENERATION 1-3 Dual Action Recoil Spring/Stainless Steel

[erdyalx]

An acquaintance in Montana suggested these to me yesterday. He hunts over there with Underwood 220gr Hard Cast primarily, and and said these perform well in the reduction of felt recoil. Just curious if anyone had any additional experience.

I ordered one for testing. Here's the product description from my receipt:

Product ID: GK20DA
Product Name: For Glock 20, 10mm, 400 Corbon GENERATION 1-3 Dual Action Recoil Spring/Stainless Steel

I don't use that one exactly. They were not out when I got my gen3 g20. I use a similar idea from a different company. Gunblast reviewed them. The concept really helps. I run the stock Glock barrel and it eliminated brass issues in the Underwood ammo. So I shoot just about everything I can get my hands on and it just runs great.

"God bless and good shooting"
Erik Dyal

[NOI]

An acquaintance in Montana suggested these to me yesterday. He hunts over there with Underwood 220gr Hard Cast primarily, and and said these perform well in the reduction of felt recoil. Just curious if anyone had any additional experience.

I ordered one for testing. Here's the product description from my receipt:

Product ID: GK20DA
Product Name: For Glock 20, 10mm, 400 Corbon GENERATION 1-3 Dual Action Recoil Spring/Stainless Steel

I don't use that one exactly. They were not out when I got my gen3 g20. I use a similar idea from a different company. Gunblast reviewed them. The concept really helps. I run the stock Glock barrel and it eliminated brass issues in the Underwood ammo. So I shoot just about everything I can get my hands on and it just runs great.

"God bless and good shooting"
Erik Dyal

Thanks for responding, good to know.