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Posted: 12/6/2005 2:06:36 PM EDT
Other than having a one-piece upper/rail system, and the changeable barrel system what is great about these?( I don't care about the CDI factor or cool guy toy) Do they run cleaner? shoot straiter? What? Or would the lietner-wise be better? Please edumacate me PS I did a search and only came up with one so-so review(no details) and the pic thread |
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*****NOTICE***** The following reply may contain information that some may find irritating. Certain parts of this reply may defame certain fads or present facts that go against the mainstream ideas or trends. No part of this post is ment to besmeech any particular manufacturer, dealer or vendor. If you feel that you may be offended, please do not read any further. ********************************** Perhaps the single biggest advantage this type of system is that if provides a rail that does not rely on the barrel nut for mounting. It is proven that the flexing at the front of the receiver, caused by this method of mounting, degrades the mechanical integrity of the rifle. There are really two classes of handguards: there are the plastic hanguards, which do little more that what they are designed to do... keep you from burning your hand and make the weapon more ergonomic -- and the current trend of "accesory mounts" that also serve as a handguard. When the mutli-rail handguards started to become more popular, the amount of stuff that could go on one increased at an equal or greater rate. The traditional method of mounting the handguards was fine for most things, but as optics and aiming devices came into play, the rails on the handguard needed to be made sturdier and held truer. The common answer is to use the barrel nut, or a modified barrel nut to mount the handguard to, the problem is that the upper receiver was never ment to support this load and the barrel/receiver flex under the leverage of the handguard. This has become more pronounced with heavy barrels... The alternitive is the rail mounted system (such as POF, SIR and CAS-V) that do not put (much) additional strain on the barrel nut. The down side to these (as some see it) is that the top rail is raised... but most of the time you need that height anyway, and that the rail is higher than the SOPMOD specification. The one piece upper receivers provide a continuous rail that places no load on the barrel nut. There have been a slew of mods to try to relieve the pressure on the nut, but the receiver design does not allow for much to be done -- The new Colt M5 used a good idea and there are a couple of other even more obscure systems that do not "lean on" the barrel mount and nut. |
No, there is no magic to the system - at the heart of the rifle is the old-school gas system... besides the fact the upper is one solid piece of aluminum there is nothing special and the couple things you mention are the major selling points. Leitner-Wise has not got their MRS on the market yet so the only other option would be the MGI set up. Spooky |
The magic to the system is the quick change barrel system and an upper that is fully milled and starts off as a 16 pound block of aluminum. Build quality is unreal. Just wait for when they start offering 6.8SPC quick change barrels.... I plan on having a modified 14.5" .223, 22" .223 and the 6.8 SPC when available.... all in one case... without the need of having three complete upper receivers. |
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