Convoy Accessories Review - IMHO YMMV
Clip-on Clip https://www.aliexpress.com/item/1005002413109298.html?spm=a2g0o.order_list.0.0.21ef1802cowKTq A little too small at 22 mm diameter so I could see a little air gap between clip and light. I would have preferred probably 25 mm. Fits S21D, M21E (after bending clipping arms outward a little). Might fit M21B and M21F but I didn’t try because it’s tight and I didn’t want to scratch the finish. I much prefer the screw on clip (better in every way IMHO), but if this is what you like, I would bend the arms outward a little so that it doesn’t scratch the light’s finish.
Screw-on Clip https://www.aliexpress.com/item/1005002434411703.html?spm=a2g0o.order_list.0.0.21ef1802dSS6ZX Perfect and IMHO one of the best, much better than clip on clip IMHO. Fits S21D, M21B perfectly, and thankfully also M21F and M21E. Note a subtle point: I prefer to keep the clip at 9 o’clock position (90 degrees to the left of the switch) so that it doesn’t go under my right hand grip. This is not always possible with the screw on clip because that depends on position of the holes.
Metal lighted switch https://www.aliexpress.com/item/1005002389032527.html?spm=a2g0o.order_list.0.0.21ef1802dSS6ZX IMHO mandatory for S21D and M21B. For switch color I chose blue because of less current drain vs orange. The metal switch has a wonderful nicely tactile click, more defined in its action and night and day better than the rubber version. For me, it is especially critical for the 12-GROUPS UI used in these lights because in this UI both click (full click) and tap (half press) are important, and the tap is so much easier with it. The metal switch has a built in half-way stop for the tap’s half press and it makes all the difference IMHO. Install takes 5 minutes, completely plug and play. The most challenging step is to remove the retaining ring which is very tight and would likely be difficult if you don’t have something similar to this needle point pliers https://www.amazon.com/gp/product/B000JNRR0Y/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&th=1 .
Please note the spec current drain listed by Simon is wrong by a factor of 20 (!!) I have measured the drain and it is ~0.5 mA, not 9.4 mA (way way too high for a a switch light). I brought this to Simon’s attention but don’t know if he will correct it. 0.5 mA is between the low mode (~0.1 mA) and high mode (~1 mA) of an Anduril switch light.
More throwy replacement optics
Click HERE for discussion of the 5 optics available: Sofirn 10 Degree Clear, Convoy 10 Clear, Convoy 10 Bead, Convoy 30 Bead, Convoy 60 Bead. Sofirn and Convoy 10 Clear and the Convoy 30 Bead are my fav’s. Convoy 60 Bead has diffused and beautiful beam, but dimmer.
Convoy to buy: https://www.aliexpress.com/item/3256804406224003.html
Sofirn to buy: https://www.sofirnlight.com/products/quad-optic-lens-for-if25a . The beam has a more defined and bright hotspot so this is the most throwy of all the optics. The fit is nice and tight, nothing loose.