So I've been experimenting with a forend strap on my Tac-14. A final decision won't be made until I hit the range sometime this week to see how the current configuration with the Magpul Hand stop works. I'm seriously thinking a strap won't be necessary. Given the grip texture of the hand stop and my general hand/arm strength. In addition I'm not timing myself on how quickly I can put 5 rounds down range. Please excuse the use of tape and staples to temporarily tac things into place. Also in some of the pics obviously the strap needs to be shortened. The strap came from an old fanny pack.
Here's the first configuration I've tried. Utilizing the Magpul sling mount, then looping the strap over the rear hand stop and mounting the end of the strap on the back of the forend. This is the method I would choose if it becomes necessary. It has the best feel. Screws would go into the forend on the back where you see the tape wrapped around.
Second configuration places the strap on the inside of the hand stop rather than looping over the top. It works but feels wonky and starts to make an already tight space tighter. I also have concerns about placing a screw or pop rivet into the hand stops face. (this method would require the use of something behind the hand stop as support material) My least favorite. Yes those are my PAJAMAS in the picture.
The third method eliminates the Magpul hand stop furniture altogether and utilizes two sling mounts. If you didn't want to use sling mounts you could simply mount the strap to the forend like Mossberg does on their corncob. This would be my second choice.
My choice for the Tac 14 over the Shockwave are simple.
1. Remington action/steel receiver
2. Availability of firearm at the time of purchase
3. Mapul forend that allows for various accessories to be mounted. This a moot point as you could do the same on the Shockwave.
4. In the case of a PGO (pistol grip only) I prefer the location of the Remington safety.
5. Remington finish.
1. Dual extractors
2. Pre drilled receiver for mounting rail. Again a moot point as drilling and taping the Tac
14 I can do myself in addition to no desire to scope/red dot it. If that's needed I'll mount
a green laser/light on the Magpul forend.
3. Already comes with 5 +1 capability
4. Mossberg is almost 1/2 pound lighter (TAC-14: 5.65 Lbs; Shockwave: 5.25 Lbs)
5. Ability to shoot Aguila Minishells with adapter that must be removed when shooting 2
and 3/4 inch shells. I'm thinking if the Aguila shells turns out to be a big deal there will
be a mod for the Remington. If not maybe I'll make one myself.
Seriously it boils down to what an individual wants and puts a premium on. For me it was the Remington action and Magpul forend. I could have been just as happy with a Shockwave. On another note I did just see a two tone Mossberg Shockwave with a Marine colored receiver.
My ammo of choice for the Tac 14 is Federal Law Enforcement Tactical 12 Gauge 2-3/4" 1 Buckshot 15 Pellets.
Hope this helps out.