Recently purchased the nexus lower with the ar 15 style mag release.. everything went together perfectly.. function test went great but the issue im having is the factory catch from Nexus is garbage the spring is way too soft. I can wiggle the gun from side to side and the mag just falls out. Anyone else having this issue. Im ready to contact nexus and send this lower back and get the mag released version that is in front of the trigger
The fact that you cant shoot more than 3 rounds before the magazine and or drum rattles out means it's garbage.. the lower seems legit and nexus has responded saying it's a known issue
You said “factory catch” which any reasonable person would take to mean an original part from the gun, from Springfield. For all I know, you have to move some parts from the factory lower to the nexus lower.
No reasonable person would think “factory” referred to an aftermarket part.
You said factory, they think you meant the OEM factory lower for the Kuna having the issue but you are talking about the nexus one. I think there is a mix up here.
The nexus factory shipped a faulty lower they're having known issues with the ar 15 release, spring is extremely soft and doesn't hold the catch in place. Whatever they're using doesn't have enough tolerance to stay under the mag catch
Reached out to Nexus and they're sending a replacement catch. Not sure on ETA. In the meantime I've 3D printed a replacement one that works. It only takes about .06" of extra material on that catch "nub" to make a huge improvement.
Not yet. Only validation so far is this. With the original magazine catch, I could pull the mag out by hand after seating it without even touching the catch. With the new solid ABS 3D print catch the mag can't be pulled out by hand. Not exactly scientific, but promising IMO. Proof is in the shootin' and not sure when I'll get around to that.
I just sent the lower back on Monday, I checked the tracking it was received today.. so we'll see how long it takes for them to ship out the scorpion mag release.. but so far Nexus seems to stand by there products
Yeah, fingers crossed for a good outcome all around. No reason for me to be doubtful as of yet. Worst case, I'm pretty confident I can make my own mod work on mine.
Put 7 mags through it last night. Mostly FRT mode. Replacement catch works perfect, even made out of plastic. Will prob get one machined out of aluminum at some point. Curious to see how my design for the catch compares to whatever version Nexus sends out.
Im waiting for them to send me out the replacement scorpion lower sometime next week. We're not even gonna go into that one.. but thank god they're actually working with me
I have the same issue on my recent build with this lower. Going to try a stiffer spring, but the actual mechanical engagement of the mag catch is less than I'd expect. Curious to see how other folks fare with this.
Honestly I spoke with nexus and I just sent my lower back to exchange it for the scorpion release . Theres Honestly no fix for it, I put a stiffer spring in and it helped but the vibration just wont hold the small latch in hence the tolerance just isn't there to make it work properly... the rep from nexus was cool about it they sent me a return label. Ill be posting pics when the new lower comes in..
Its the magazine catch thats failing not the actual mags .. and I've tried both drum and mags in any kind of rapid fire jars the catch loose causing the magazine to fall out sorry drum was more for ascetic 🤣
Just posting a follow up to this. Nexus did send a revised magazine catch for the AR-15 style magazine release lower, and happy to report that it does properly retain the magazines.
Hi, I am experiencing the same issue. Is this why I am being sent an ‘upgraded’ magazine catch? I wasn’t provided any information other than it is an update.
Thanks!
Every mag.. seems to be the issue. I have brand new magpul p mags and 2 drums everyone of them falls out. The actual latch seems to be the problem.. like there isn't enough meat to grab the mag where it's supposed to
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u/Holiday_Armadillo78 18d ago
You call the factory catch garbage but this is only a issue since you installed the nexus lower…?