Questions about using an AR for Highpower competition in California

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cacoltguy

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I'm hoping there are some High Power shooters here who have experience with the sport in California. I'm in the process of putting together an AR to be used in the Service rifle class. (This will be my first AR ever) Obviously CA. has the magazine button box rule. How do you guys go about magazine changes with this thing? Is there an exemption when taking part in competition shooting? Secondly, since magazine capacity is limited to ten rounds in CA, do people use magazines that look like 30 round mags with some sort of capacity limiting device inside? I read over the NRA rules but I'm a little fuzzy. I was under the impression that magazines had to be the same in appearance as military issued thirty rounders.

I know these questions may seem a little dumb to those of you with High power shooting experience but this is my first AR and I have yet to shot a match. I would go to some of the matches in my vicinity to see what people are doing but most of the clubs are dormant in my area this time of year due to the extreme heat. I'd like to have everything set up to compete this coming fall.
 
check the colt ar15 parts list.they had 20 round mags they used an insert in to make them useable for hunting at 5 rounds each.they were a flat strap in a u shape that had the tips edges bent in to contact the follower at 5 rounds.find a couple and fix it to 10 rounds

Disassemble magazine, remove spring . Leave feed ramp in magazine. Hold upside down, insert 5 rounds. Insert pencil,push on bottom of feed ramp, mark length to magazine bottom, then cut/shape a piece of wood to fit minus a half inch.Trim spring to right tension, insert wood block, attach bottom of magazine. Might take a little adjusting but you get the idea.

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HGUNHNTR

cdnn sports has thermold 10 rounders for 6,99 each

http://www.ebay.com/itm/VINTAGE-COL...362?pt=LH_DefaultDomain_0&hash=item4168870ce2
here's what i am talking about.
 
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All the AR HP shooters I know of use 20 round mags. As noted above, you can get blocks to reduce the capacity of those to 10 max. Only time I've seen a 30 is when a new shooter comes to try out a match ... the 30s are an annoyance in prone and sitting and, depending upon your weak hand grip style, maybe also in offhand.

When you're ordering 20's, be sure you get the straight rectangular model - not the style with a slight curve - those are not service rifle legal. Like the last pic here - not the second and third pics...
http://www.wideners.com/itemview.cfm?dir=625|626|866

/Bryan
 
Thanks for the information everyone. I'll look around for some 20 round magazines with some sort of block inside. Thanks for the tip about the curved versus rectangular shaped mags Canuck. I wasn't aware of that rule.
 
Yeah - LOL ... I learned the hard way; I've still got 6 of the curved I need to peddle to someone shooting match rifle instead of service. The curve is absolutely no advantage, actually it's a hindrance to my offhand grip but, them's the rules!
/B
 
Are you shooting CMP matches or NRA ones? Most clubs here use NRA rules so the 10 round box mags will work.
 
Live in CA, and also don't shoot in competition but wanted to make 2 points: (1) I would be surprised if there is an exemption to the bullet button requirement even if using in a competition so make sure it is installed before crossing the border; and (2) a blocked shot-gun magazine is fine for duck hunting requirements, but a wood block system for an AR mag would likely not be legal unless the change is permanent and irreversible. If you require a 20-round looking mag, the Magpul 10/20s (or similar) are fine. I wouldn't hesitate to contact the organizers for their input. Good luck in your match!
 
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