The first to be asked and the first on the scene was the enhanced bolt carrier group bcg by lmt that addressed all of the issues. Standard flattop upper receiver with 16 chromelined 1. Lmt defense has an enhanced bolt carrier group that is a bit more advanced that you might think at first glance. The extractor on the bolt assembly has lobster tail appearance and offers a doublespring system. Jp enterprises full mass bolt carrier group wing tactical. This is the m16 profile, which is the full mass option. Built from a proprietary material that is not only stronger than the standard bolt but easier to clean as well. Manufacturers at brownells top rated supplier of firearm. However, before we delve into the minutiae, lets first understand exactly what a bolt carrier group is and the duties it performs. Though, im not even sure what kind of bcg the mpr has. Thanks for contacting us with your comments and questions. Mar 06, 2014 the enhanced bcg out there are manufactured and machined with tighter tolerances for optimal cycling performance. They both worked and were quite capable, but shooting them sidebyside, i found that the lmt cqb mrp defender felt smoother. Jan 20, 2009 most people look for the level of testing done for each component, find the features most important to you and pick your choice.
As i had previous experience with the dc16 i thought i knew what to expect, however i was pleasantly surprised. May 15, 2017 although i and other gunsmiths have known about how bolt carrier tilt degrades accuracy in stoner platforms for decades, the first time i mentioned it in this magazine was near the end of ar15 upper quick fixes. As long as were discussing the latest and greatest surefire products, we should probably mention the new surefire optimized bolt carrier long stroke obcls temporary name dropin bcg bolt carrier group and h7s buffer system with longer action spring. This carrier was designed to function effectively in fullauto, suppressed, and short barrel weapon systems, and it is made of materials far more durable than your standard fare. The entire carrier assembly is nib, electroless nickel boron coated with the patented. It seems there have been numerous questions regarding the lmt enhanced bolt carrier and its function in various set ups. The bolt carrier group is a standard lmt bolt carrier group. The bcm gunfighter is also excellent if you want to spend about 12. Jan 23, 2019 the bolt carrier group is nitrided and uses a 9310steel bolt with 6. If our standard bolt carrier is the infantryman of the gun industry, then our enhanced carrier is the delta operator. The bolt carrier group bcg is the heart of any ar platform rifle. Not the least of which is the intended purpose of the weapon followed closely by your budget, firing frequency, and aesthetic appeal. I found that the lmt didnt feel like a more commonvariety ar id brought along to test. There are two manufacturers, however, that have made significant contributions to improving the ar15s bolt carrier group bcg as designed.
Lmts enhanced carrier group helps smooth out your rifle by delaying the bolt from opening long enough to reduce gas levels to a point that reduces wear and extracts easier. So i decided to go out and do some basic function testing to satisfy my curiosity. The bolt, bolt carrier group with op rod and piston attached all slides out with the bcm 7. Combating ar15 bolt carrier tilt american gunsmith. The advanced direct impingement bolt carrier group offers superior performance, increased reliability, and longer part replacement life cycles than the milstd components. Bootleg inc adjustable bolt carrier group duration. Lmt delivered their enhanced bolt carrier group because failure was not an option. Toolcraft nitride or save more for an lmt enhanced. Find uppers, lowers, stocks, barrels, triggers and more parts for your ar15 rifle. Most go for mpi testing and look for proper steel construction and carrier staking. The upper uses milspec parts for the forward assist, charging handle, and dust cover. I got an lmt bolt assembly in today ordered it because bravo company.
The lmt enhanced bcg is designed to function in fullauto, suppressed, or short barrel rifles. Replace worn out parts or build your own perfect bcg for your needs. This carrier group was designed to function effectively in fullauto, suppressed, and. Our superior carriers are enhanced with a more resilient coating, refined heat treat, and a fully supported cartridge case by the bolt face. Its large handle follows the curves of the receiver and blocks residual gas or excessive lubricant. You will appreciate the savings on your purchase of one of the 22 jp enterprises bolt carrier groups offered at such competitive prices at opticsplanet engineered with legendary jp enterprises quality, the bolt carrier groups delivers the excellent performance you expect. Some people dont like the expensive enhanced bolt from lmt, research before you buy one. All jp enterprises components are proudly manufactured by american tradesmen of superior quality materials with the competitive marksman in mind. The stonertype direct impingement system traditionally used in the ar15m16 platform bleeds off propellant gas from the bore and directs it through a tube to the bolt carrier group, which then cycles the gun. Fully supported front of carrier for bolt three gas vent holes modifies gas port, two vents instead of one. Enhanced bolt which has a more resilient coating and stronger heat treat, as well as the cartridge case being fully supported by the bolt face.
Proprietary enhancements patriot ordnance factory pof usa. If our standard bolt carrier group is the infantryman of the gun industry, then our enhanced bcg is. Guntec usa ar15 rainbow pvd bcg bolt carrier group enhanced m16 5. Items marked as special order are ordered from the manufacturer. M16 full auto style for increased mass and lock time. Was wondering about the lmt enhanced or the sure fire enhanced. Surefire optimized bolt carrierlong stroke obcls drop. The handguard is a freefloated, 15 mlok and is a solid design with an integrated qd attachment point.
The lmt enhanced fullauto bolt carrier group was developed for use in fullauto, suppressed and short barrel rifle applications. The lmt l7q3a m16 enhanced bolt carrier has an enhanced cam path which allows for your gun to have less barrel pressure and a greater dwell time. The bolt carrier group will be used on a 16 inch mid length a. Jp enterprises bolt carrier groups up to 18% off on 22. These are just three advantages cited by people who prefer pistondriven rifles over directimpingement guns. Jp fmos carrier group with jp enhancedbolt is it worth. Enhanced arm16m4 bolts and bolt carriers part 1 youtube. This carrier group was designed to function effectively in fullauto, suppressed, and short barrel weapon systems, and it is made of materials far more durable than the competition.
Enhanced carrier which incorporate a longer dwell time allowing barrel pressure to be greatly reduced and promoting easier extraction. Includes lmt s enhanced carrier, which incorporates a longer dwell time allowing barrel pressure to be greatly reduced and promoting easier extraction, as well as lmt s enhanced bolt which has a more resilient coating and stronger heat treat, as well as the cartridge case being fully supported by the bolt face. Other than maybe overspending, did i make a mistake. Karl lewis of lewis machine and tool lmt also developed an enhanced bolt and bolt carrier. Faq installation videos warrantyreturns ffl transactions.
The defender standard model 16 features a standard flattop upper receiver with 16 chrome lined 1. Complete master list of bolt carriers and discount codes at. The most significant being the modification to the cam track to allow more dwell time before the bolt would unlock giving the cartridge case more time to contract, making extraction easier. The patriot ordnance factory launched two new arstyle rifles with straight pull actions that are legal in all original colonies. This is a quick basic comparison on the lmt enhanced bolt, compared to the standard g.
Beginning with the bolt carrier itself, several modifications were made with the most significant being an alteration of the cam pin track that would allow more dwell time. The carrier is made from the same 8620 steel with a manganese phosphate finish, but it includes a host of new modification. Knights armament sr25 vs lmt 308 snipers hide forum. The company is known for its highend rifles and the. I also use the young nm bcg and the lmt enhanced bcg, the bolt on the lmt i have not seen one like it, it uses two extractor arm springs.
Modified locking lugs provide flexibility and durability in dealing with highpressure, overgassed loads. May 07, 2015 removing the bolt carrier group was also a little different than the standard ar10 i was used to. Lmt enhanced bolt carrier group m16 strong side tactical. Shop hinterland outfitters for the lmt cqb mrp defender 6. Im looking for feedback from owners that have ran both or at least have one or the other. Cmc trigger ar15 enhanced bolt carrier group bcg m4m16ar15 9310 300blk blackout. Jun 06, 2019 that being said the round is ballistically superior to the 5. This improvement also makes for ease of extraction which is very important when it comes to ar platform rifles. Good price and a few extra features with the enhanced lower. This jp bolt carriers are available as small frame bolt carriers for the. As the ar is the most adaptable and versatile rifle of our time, you can simply alternate the standard upper receiver with a pistonenabled version. Far exceeding milspec requirements, the sp 223 has features not found on standard lowers such as the seekins precision enhanced bolt catch, receiver tensioning screw, ambibolt stop assembly and an oversized trigger guard. Ship your gun to zev important reseller application trigger replacement program. I ordered it with the full auto enhanced bolt carrier group.
Will the lmt enhanced bolt fit inside you stock bolt carrier group bcg or do. Our enhanced backbone receiver also move the uppers natural stress point forward. When you shoulder your weapon, it must operate flawlessly even in harsh weather conditions. Surefire teamed up with sullivan to design their optimized bolt carrier group. Lmt l7q3a m16 enhanced bolt carrier strong side tactical.
Both of these products have very unique features that improve the reliability and durability of the ar15. Nov 20, 2015 the extended latches are internally redesigned to direct the force off the roll pin and into the body of the charging handle during support hand only manipulations, making the charging handle stronger and less prone to breakage. Rainier arms has one of the best selections of quality ar15 parts and ar15 accessories online. We stock only the best parts for the highest quality fit and finish on this crucial component. That being said, ill just stick with bcm bcgs for my daily drivers. Built from a proprietary material that is not only stronger than the standard bolt but easier to clean as well modified locking lugs provide flexibility and durability in dealing with highpressure, overgassed loads. Dont forget the fireclean if youre shooting suppressed. Now i have been reading that i may be better off with the regular bolt. Ar15, m16, m4, bolt carrier groups bravo company usa. Akfaletc pics ar pics have their own subforum page 39.
Lmt s enhanced carrier group helps smooth out your rifle by delaying the bolt from opening long enough to reduce gas levels to a point that reduces wear and extracts easier. I normally see 2 to 4inch groups from carbinelength ars with standard triggers. The lewis machine and tool enhanced bolt carrier group takes all that makes the standard bcg good and makes it great. Jp enterprises products far exceed performance expectations and earns high praise in the field.
Precision cnc machined from solid billet aluminum, the sp223 billet lower is the best ar lower receiver available. These gains are achieved through lwrcis design technology paired with industryleading machining and material technology. The modified cam path allows for a greater dwell time, and superior extraction. Ive tried researching the subject, but theres not a lot of information out there right now. Sionics np3 carrier and small parts with a lmt enhanced bolt would be my top choice for a 300blk bcg. As with all lmt boltscarriers these are test fired at the factory and will show evidence of such. Our new bcg is precision machined from 8620 steel with a shot peened bolt manufactured from carpenter 158 and magnetically particle inspected. Altered cam path for longer dwell time and more robust extraction modified gas hole improves gas flow across the bolt s tail additional gas ports on right side and modified orientation to improve gas flowing through the ejection port, and not into your face. A unique charging handle assem bly can be used to manually draw the chromed bolt carrier group into the buffer tube.
By simply changing the complete upper receiver, the shooter can have an ar15 upper receiver group with its own receiver, barrel, sights, muzzle device, gas system, and bolt carrier group. Quite simply, its the best possible upgrade for your rifle to increase reliability and functionality. An altered cam path offers longer dwell time, while a lobster tail extractor allows for consistent extraction due to the utilization of 2 springs. The lmt defense enhanced bcg is widely known as the ferrari of bcgs.