I wanted to share with you my very positive experience with Atlantic Research Marketing Systems otherwise known as A.R.M.S.
This company develops and manufactures high-quality sighting and optics mounting options for AR platform weapons as well as others which use picatinny or weaver style mounts.
I utilize two of their back-up iron sight systems: I use the 40-L's (all steel) front and rear flip-up iron sights on my Kel-Tec RFB, and the 71-L (polymer w/ steel apertures) front and rear flip-up sights on my Kel-Tec KSG.
40-L front and rear
71-L front and rear
The 40-L rear sight on my RFB was their older model and did not include the second generation notched apertures for longer distance shooting.
I emailed the company and inquired as to if I could buy the newer apertures, and if they would work. A week went by with no response and then I received an email stating that they would be giving me a pair for no charge and needed a shipping address. Wow! And they arrived today.
I encourage you to consider this company and their products. Great costumer service, quality materials and manufacturing processes, as well as innovative ideas and designs. Check them out!
This company develops and manufactures high-quality sighting and optics mounting options for AR platform weapons as well as others which use picatinny or weaver style mounts.
I utilize two of their back-up iron sight systems: I use the 40-L's (all steel) front and rear flip-up iron sights on my Kel-Tec RFB, and the 71-L (polymer w/ steel apertures) front and rear flip-up sights on my Kel-Tec KSG.
40-L front and rear

71-L front and rear

The 40-L rear sight on my RFB was their older model and did not include the second generation notched apertures for longer distance shooting.

I emailed the company and inquired as to if I could buy the newer apertures, and if they would work. A week went by with no response and then I received an email stating that they would be giving me a pair for no charge and needed a shipping address. Wow! And they arrived today.

I encourage you to consider this company and their products. Great costumer service, quality materials and manufacturing processes, as well as innovative ideas and designs. Check them out!
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