JeepGunner 109 Posted January 20, 2021 Assuming I did this work over at a friend's house in PA, is it legal to have 30rd Pmags converted to 10rds using magblocks and rivets in our great state of NJ? I've heard conflicting reports about being able to modify AR15 magazines past a certain date in NJ. Thanks for any and all input. Here is a video on the procedure. Quote Share this post Link to post Share on other sites
CAL. .30 M1 2,101 Posted January 20, 2021 3 hours ago, StarGazer said: Assuming I did this work over at a friend's house in PA, is it legal to have 30rd Pmags converted to 10rds using magblocks and rivets in our great state of NJ? I've heard conflicting reports about being able to modify AR15 magazines past a certain date in NJ. Thanks for any and all input. Here is a video on the procedure. In my opinion that is not a permanent modification. Assuming you own them and assuming they are in PA...and you want 10 round mags. Leave them in PA, they might be worth something soon or at least be grandfathered...and buy new 10rnd mags. If you want to modify them, cut the mag body to 10rnd length and the mag plate can be pinned on... works like a charm. 1 Quote Share this post Link to post Share on other sites
JeepGunner 109 Posted January 20, 2021 Thanks for you input. I only have the short 10 rd pmags. Would epoxy make it a permanent modification? And are there any issues with using mag blocks themselves for the modification? Quote Share this post Link to post Share on other sites
RUTGERS95 890 Posted January 20, 2021 rivets would make permanent per the law but epoxy would not In reality, nothing is permanent 2 1 Quote Share this post Link to post Share on other sites
Scorpio64 5,156 Posted January 20, 2021 24 minutes ago, RUTGERS95 said: rivets would make permanent per the law but epoxy would not Epoxy and rivets have been used (separately) by major resellers to make plastic mag mods permanent. 1 Quote Share this post Link to post Share on other sites
RUTGERS95 890 Posted January 20, 2021 4 minutes ago, Scorpio64 said: Epoxy and rivets have been used (separately) by major resellers to make plastic mag mods permanent. well it depends on how it's done. I've seen people epoxy bottom on the outside and it's clearly not going to fly as you'd need to do is cut through it. 1 Quote Share this post Link to post Share on other sites
Scorpio64 5,156 Posted January 20, 2021 8 minutes ago, RUTGERS95 said: I've seen people epoxy bottom on the outside I cannot speak to how some individuals make the mod permanent. Just how Charlie Cooper and GMW do it. I can assure you, the epoxied mags are as permanent as permanent can be according to the law. I've also seen roll pins inserted laterally through the floor plate. 2 Quote Share this post Link to post Share on other sites
Shepherd9 215 Posted January 20, 2021 Almost all modified 10/30 pmags are epoxied after the magblock is installed. These are permanently modified magazines and sold as NJ compliant. The intent is to render the magazine permanently limited to 10 rounds. Just because you "can" dissolve or cut through the epoxy does not make it non compliant. There is nothing that can be mechanically done to limit a 30 rd magazine that could not be undone with enough effort. 1 Quote Share this post Link to post Share on other sites
RUTGERS95 890 Posted January 20, 2021 10 minutes ago, Shepherd9 said: Almost all modified 10/30 pmags are epoxied after the magblock is installed. These are permanently modified magazines and sold as NJ compliant. The intent is to render the magazine permanently limited to 10 rounds. Just because you "can" dissolve or cut through the epoxy does not make it non compliant. There is nothing that can be mechanically done to limit a 30 rd magazine that could not be undone with enough effort. it absolutely does. If you can modify it, it's not permanent. There are many ways too do this I agree but if it can be modified, it's not permanent. Now if it's riveted or blocked with rivets great but if only using epoxy, you're cooked 1 Quote Share this post Link to post Share on other sites
Sniper 6,372 Posted January 20, 2021 16 minutes ago, Shepherd9 said: There is nothing that can be mechanically done to limit a 30 rd magazine that could not be undone with enough effort. This is correct, nothing is permanent. Even rivets can be easily drilled out. My suggestion, put in the mag blocks, epoxy the base plate, and stop worrying. There hasn't been a single report in over 2 years of anyone being arrested at the range with a +10 round mag. 1 1 Quote Share this post Link to post Share on other sites
RUTGERS95 890 Posted January 20, 2021 2 minutes ago, Sniper said: This is correct, nothing is permanent. Even rivets can be easily drilled out. My suggestion, put in the mag blocks, epoxy the base plate, and stop worrying. There hasn't been a single report in over 2 years of anyone being arrested at the range with a +10 round mag. agree I believe if it requires tools to modify, you'd be safe but my issue is just the epoxy. I can melt epoxy with a lighter if needed, boil it away, etc etc. I can make that epoxy disappear faster than 1k brick of ammo if needed. That's why the 'only epoxy' crowd, and they are out there, need to be careful 1 Quote Share this post Link to post Share on other sites
JackDaWack 2,895 Posted January 20, 2021 What does the law actually say.. I though a block or rivet wasn't allowed. Quote Share this post Link to post Share on other sites
El Jefe 49 Posted January 20, 2021 Is it worth all the hassle when you can get a legal one online quite cheap. Theoretically the spring on that mag was designed for a specific travel length that you now changed significantly. Quote Share this post Link to post Share on other sites
ChrisJM981 924 Posted January 20, 2021 4 hours ago, StarGazer said: Thanks for you input. I only have the short 10 rd pmags. Would epoxy make it a permanent modification? And are there any issues with using mag blocks themselves for the modification? Magpul just introduced 10/30 rd pmags at a MSRP of $18. I'd buy those and save on money & headaches. Keep those 30 rd mags whole. 1 1 Quote Share this post Link to post Share on other sites
RUTGERS95 890 Posted January 20, 2021 $11 for hexmags and they work great. Steve also has mags for $15 in stock, an entire freaking crate of them. I prefer metal but the hexmags are more than fine 1 1 Quote Share this post Link to post Share on other sites
JeepGunner 109 Posted January 20, 2021 Hexmags show what a clusterfvck NJ law is. You can easily disassemble the 10/30 Hexmag, swap out the spring and have a full 30. Undoing a riveted or epoxied Magpul is tons more difficult. Edit: just a clarification - the old 10/30 Hexmags could be easily disassembled. It looks like the newer series 2 Hexmags have a rivet at the base. 2 Quote Share this post Link to post Share on other sites
Sniper 6,372 Posted January 20, 2021 1 hour ago, StarGazer said: Hexmags show what a clusterfvck NJ law is. You can easily disassemble the 10/30 Hexmag, swap out the spring and have a full 30. Isn't it nice to have options? 1 Quote Share this post Link to post Share on other sites
rtquig 45 Posted January 20, 2021 I used both the rivet and epoxy. I didn't bother changing the Hexmags, they are now in Georgia. I only did my Magpul. Quote Share this post Link to post Share on other sites
Malice4you 627 Posted January 21, 2021 10 hours ago, StarGazer said: ... old 10/30 Hexmags could be easily disassembled. It looks like the newer series 2 Hexmags have a rivet at the base. Either you have the old 15/30 hexmags someone converted to 10, or someone messed with a hexmag 10, because my Gen 2 10/30 Hexmags have no rivet. The entire point with limited Hexmags was they were still able to be disassembled to clean. Quote Share this post Link to post Share on other sites
JeepGunner 109 Posted January 21, 2021 42 minutes ago, Malice4you said: Either you have the old 15/30 hexmags someone converted to 10, or someone messed with a hexmag 10, because my Gen 2 10/30 Hexmags have no rivet. The entire point with limited Hexmags was they were still able to be disassembled to clean. I don't have any Hexmags I saw one video that showed an easy conversion and they I saw the following where the mag is riveted and needed to be drilled out. Quote Share this post Link to post Share on other sites
Malice4you 627 Posted January 21, 2021 1 hour ago, StarGazer said: I don't have any Hexmags I saw one video that showed an easy conversion and they I saw the following where the mag is riveted and needed to be drilled out. Interesting, never heard of them, though even on sentry's own website the 10/30s don't show the rivet (but do mention it). So it sounds like it is either a new addition or an option. I own a number of gen 2 hexmag 10/30s bought around when NJ's bullshit went into effect and they are absolutely not riveted nor were they ever. Quote Share this post Link to post Share on other sites
1LtCAP 4,263 Posted January 21, 2021 i thought that the catch to this was that as long as it couldn't be "readily" converted back then it was considered permenant? Quote Share this post Link to post Share on other sites
Old_Hunter 28 Posted January 21, 2021 Where are there guidelines that state you can block or pin magazines? I thought you were given three options when the law was changed: a. Transfer the semi-automatic rifle or magazine to any person or firm lawfully entitled to own or possess that firearm or magazine; b. Render the semi-automatic rifle or magazine inoperable; or c. Voluntarily surrender the semi-automatic rifle or magazine pursuant to the provisions of N.J.S.2C:39-12. Quote Share this post Link to post Share on other sites
ronhonda 86 Posted January 21, 2021 honestly why bother when you can buy them shortly from magpul. With a MSRP of 17.95 I'm sure it could be found for less. https://magpul.com/what-s-new/pmag-10-30-ar-m4-gen-m3.html Quote Share this post Link to post Share on other sites
Sniper 6,372 Posted January 21, 2021 6 minutes ago, ronhonda said: honestly why bother when you can buy them shortly from magpul. With a MSRP of 17.95 I'm sure it could be found for less. Plus shipping.. What if you already have like 20 Pmags? Magblocks are like $4 each. Quote Share this post Link to post Share on other sites
ronhonda 86 Posted January 21, 2021 31 minutes ago, Sniper said: Plus shipping.. What if you already have like 20 Pmags? Magblocks are like $4 each. I'm in the same boat. I might have a substantial amount of mags living in PA until further notice. Also still cheaper than what most retailers were charging in the past. Quote Share this post Link to post Share on other sites
Shocker 151 Posted January 21, 2021 14 hours ago, Malice4you said: Interesting, never heard of them, though even on sentry's own website the 10/30s don't show the rivet (but do mention it). So it sounds like it is either a new addition or an option. I own a number of gen 2 hexmag 10/30s bought around when NJ's bullshit went into effect and they are absolutely not riveted nor were they ever. I have many Gen 2 10/30 Hexmags, purchased at different times. The earlier ones had no rivet in the baseplate, the more recent ones did. Their key is if the riser was missing the spring would be too short and they wouldn’t feed. As mentioned above, if you had 30-round springs you could throw out the riser and make the conversion...but it’s just as easy to get a spring as it is to drive 15 minutes west and buy standard cap mags if one were so inclined. So... there’s no rationalizing Quote Share this post Link to post Share on other sites
UnlikelyShooter 3 Posted March 17, 2021 Hi Everyone, Assumeing that under the text NJ law that the use of a rivet or epoxy = permenant. Then replacing the locking plate of a Magpul PMAG M3 30rd with a Magblock 10/30 limiter securing the bottom slide plate with a rivet or epoxy = legal. My question is; If we replace the PMAG locking plate with the Magblock limiter and epoxy the spring to the Magblock limiter, leaving the bottom slide plate free to open for cleaning the magazine, is this still "permanent"? I ask because I have seen Glock 15rd magazines limited with a Magblock 15/10 epoxied to the follower and the bottom plate left free so that the magazine can be opened for cleaning. Quote Share this post Link to post Share on other sites
JohnnyB 4,325 Posted March 17, 2021 I believe if you can open the mag and remove the block without destroying the mag, it's a 30 rounder again and thus not "permanent"! Quote Share this post Link to post Share on other sites
1LtCAP 4,263 Posted March 17, 2021 my understanding had always been if it could "readily and easily" be converted to normal capacity. the hexmags can't be due to their spring being too short. 1 Quote Share this post Link to post Share on other sites