Category Archives: Bolt

After quite a long time out of stock, Ballistic Advantage 5.45×39 barrels are finally back in stock. 5.45×39 is the ammo that you usually shoot out of an AK-74 and for a long time was some of the cheapest centerfire rifle ammo around. If you’re like me you stocked up on it when you could and now need a good barrel to shoot it all. The Ballistic Advantage 5.45×39 barrels are some of the nicest you’ll find anywhere, are very accurate and are machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish. Ballistic Advantage also includes a WOLF Extra Power Hammer Spring to ensure proper function. They also have 5.45×39 Bolts available for pre-order as well.

Ballistic Advantage 5.45x39 Barrels InStock

I have built a few 5.45×39 uppers including one with a BA barrel and I love it. Head on over to www.BallisticAdvantage.com now to snag a few of these barrels while they last. You won’t be disappointed. 

Faxon Firearms has really been branching out lately into new arenas but this one came as a surprise. The new Faxon Firearms AR9 BCG is for the super popular Pistol Caliber Carbines. Instead of choosing between Glock mag compatible or COLT mag compatible design, Faxon made this one so it will work with both. They’ve also made it a one piece design so the key is machined in instead of bolted on, it has a full auto carrier shape and a Black Nitride finish. 

Faxon Firearms AR9 COLT Glock Bolt 1Faxon Firearms AR9 COLT Glock Bolt 1Faxon Firearms AR9 COLT Glock Bolt 1

We just can’t help not accepting the status quo. Bolt carrier groups are available aplenty, but few could meet our exacting standards for performance and value. Seeing current offerings as just the starting point, we set out to ensure the best options are available for our demanding customers.

Improvements include cuts to ensure both Glock and Colt-style lower receiver compatibility. The key is machined directly into the bolt carrier – no fasteners to check or worry about. Finally, we keep the full-auto compatibility for use with new binary-style trigger systems.

DETAILED SPECIFICATIONS:

Carrier & Integrated Key:
– Compatibility: GLOCK & COLT – Style Lower Receivers
– Carrier: MIL-SPEC 8620 Steel Material
– Key: One-Piece Integrated Key
– Fully Heat Treated
– Forward Assist Serrations
– M16 (FULL-AUTO) Compatible
– QPQ – Salt Bath Nitrided

The new Faxon Firearms AR9 Glock & Colt lower compatible BCG is 1-2 weeks out but you can pre-order yours by emailing pat@faxonfirearms.com. More pictures and pricing available at www.FaxonFirearms.com.

**Press Release**

(Cincinnati, OH) – Faxon Firearms, incessant innovators in the firearms industry, is pleased to announce the release of factory matched bolts and barrels for all its 5.56 NATO and 300 Blackout Barrels.

Available for order today, anytime a customer orders a bolt and/or carrier with a barrel, the Faxon factory will precision match the bolt to the barrel using custom hardened gauging. As a set, the bolt and barrel are then matching laser engraved as a set for easy identification.

Faxon Firearms Headspace Matched Bolt and Barrel

Matching our famous barrels, Faxon’s bolts are made using only state-of- the-art machining and materials. Bolts are machined from 9310 tool steel, which is stronger than “mil-spec” C158. The extractor is S7 with latest-spec extractor spring system including spring, “Crane” o-ring, and silicone insert. Bolt carriers available as optional add-ons include the ultra-lightweight GUNNER series and the standard “M16” carrier.

“For customers who do not have a set of headspace gauges or a gunsmith available, the factory-matched bolt/carrier and barrel removes all the guesswork from putting together an AR-15,” said Nathanial Schueth, Director of Sales & Product Development. “Further, the laser-engraving ensures that no bolt and barrel are mixed up between rifles.” There is no charge for the factory-matching, laser-engraved serialized bolt and barrel service. Orders only apply to in-stock barrels and bolts, with lead times generally only a week after order. Dealers and OEMs are encouraged to explore the service as well.

Bolt Specifications:

Bolt:
-9310 Tool Steel Construction (Stronger than C158)
-Full MIL-SPEC Heat Treatment
-Shot Peened to MIL-SPEC
-Magnetic Particle Inspection (MPI)
-Back of Lugs Chamfered for Reliability
-Spring, Insert, & "Crane" O-Ring Installed
-QPQ – Salt Bath Nitrided

Extractor:
-S7 Tool Steel Construction
-Fully Heat Treated
-Shot Peened Per MIL-SPEC
-QPQ – Salt Bath Nitrided

About Faxon Firearms: Faxon Firearms is a leader in constant evolution in the firearms marketplace. Faxon focuses on US-made quality and innovation. From the ARAK platform, GUNNER & FLAME barrels, MuzzLok (crush-washer free) muzzle devices, and now with factory headspaced bolts and barrels, Faxon offers quality complete rifle systems and components. New dealers are welcome.

For more information on Faxon Firearms, visit www.faxonfirearms.com.

ODIN Works just announced they will be doing something pretty cool for those looking to build a 6.5 Grendel AR. Now when you purchase one of their 6.5 Grendel Barrels you will automatically get a free Nitride BCG and a Gas Block. This eliminates one of the headaches with building alternate caliber ARs which is finding a good BCG and Bolt to go with that caliber. 

ODIN Works 6.5 Grendel Barrel with BCG and Gas Block

ODIN Works offers both an 18″ and 20″ 6.5 Grendel barrel. Their barrels are pretty well known for being very accurate while NOT being extremely expensive. If you are looking for a great jump start on your 6.5 Grendel build, this is it and at a great price. Take a look at www.ODINWorks.com.

The other day I was given the opportunity to run some rounds through the new KAK Industry .308 Nitride BCG with Dual Ejectors. Dual Ejectors are not brand new but I have never personally used a BCG in any caliber with this setup and wanted to figure out what it could do different than my standard BCGs. So here is how I tested out the new KAK Industry Dual Ejector .308 BCG. 

KAK 308 Dual Ejector BCG 7

KAK 308 Dual Ejector BCG 6

I have a bunch of linked (for Belt Fed) .308 SWAT SSA ammo that I bought a while back to shoot. This stuff ended up being pretty much junk. Basically I would remove it from the links, load it up in my Magpul LR-20 mags and try to run it through both of my .308 ARs. No matter what I did, every single shot would result in a failure to eject. Not sure if it was just too dirty ( which it was quite dirty) or what but neither of my .308s could run it.

KAK 308 Dual Ejector BCG 6

So yesterday I unlinked a bunch of the .308 SWAT SSA and set it aside. I then grabbed some 149gr Federal XM80CL which always runs perfect and loaded up some mags.

KAK 308 Dual Ejector BCG 6

I had already tuned this guns adjustable gas block but I wanted a fresh slate, so to start I shut my SLR Rifleworks adjustable gas block OFF. Started shooting the Federal and gradually opened it up until it was just enough to eject the Federal ammo and hold the bolt open on the last round. I had it right where it should be and not over gassed so it would be a great test when we switched to the crap .308 SWAT SSA ammo.

Grabbed two mags of the .308 SWAT SSA ammo which has NEVER run right in any of my .308s. Left the adjustable gas block right where it was using my standard BCG. Sure enough, first 5 shots were failure to eject. I figured I knew where this was going so it was time to swap out the BCG and use the KAK Industry Dual Ejector BCG. proceeded to fire off 35 straight rounds of the .308 SWAT SSA without a single malfunction. No changes were made except for the BCG swap. The dual ejector setup is the only thing that could have made a huge difference from what I can tell.

KAK 308 Dual Ejector BCG 6

KAK 308 Dual Ejector BCG 6

KAK 308 Dual Ejector BCG 6

When I set out to shoot this rifle yesterday, I wasn’t sure exactly what the outcome would be. There was a chance that nothing would change but after successfully shooting  ammo that I was previously unable to due to Failure To Extract, I am sold!

This BCG features a fully machined Extractor and Gas Key. No MIM parts on this thing at all. The Bolt is 9310 and the carrier is 8620 with a Black Nitride (Melonite, QPQ, etc. All the same thing.) finish inside and out for superior corrosion resistance and lubricity. The Carrier itself has the facetted cuts, forward assist serrations and a correct auto sear trip location (for you lucky guys with an SOT). The Bolt features the dual Ejector setup, is MP tested and marked and the fully machined extractor also has a rubber o-ring helper to ensure reliable extraction.

At just $180, I don’t know you will find a better deal anywhere. You can head on over to www.KAKIndustry.com and get on their email notification list so you can snag one of these as soon as they become available.

AIM Surplus just introduced their new Black Nitride AR15 Bolt made from Carpenter 158 steel. The bolts are also Shot Peened and MPI (Magnetic Particle Inspected) and feature Billet Machined Extractors with Black Insert and O-Ring upgrade. Black Nitride is quickly becoming the go-to finish for AR parts. The fact that it is a Surface Treatment (Molten Salt Bath) and not a coating gives it better durability and boasts some of the best lubricity and corrosion protection of any finish out there. If you’re building a BCG or need a great backup/replacement Bolt, this is a great option for just $49.95 with FREE SHIPPING at www.AIMSurplus.com.

Aim Surplus Black Nitride V2 Bolt

You may have heard already that Lehigh Defense, makers of some amazing ammunition, are now offering very high quality AR Bolts in 223/5.56, 5.45×39, 7.62×39, 6.8SPC, and 458 SOCOM. I recently got my hands on a Phosphate 223/5.56 and Nickel Boron 7.62×39 bolt and just from my initial inspection, they are very nice.

The bolts are done on one machine/station. This alleviates the stacking of tolerances from multiple fixtures. They keep their tolerances down to .0003” and have a propriety heat treat process which ensures consistent case hardness across the hole bolt as well as insuring consistent core hardness. The Bolt material is AISI 9310 VAR (vacuum arc remelt), which is the highest standard material used.

Lehigh Defense Bolts 2

Lehigh Defense Bolts 2

This weekend my plan is to get out to the range to test out both of these bolts. The Phosphate 223/5.56 will be used in my new SBR and the Nickel Boron 7.62×39 will be installed in my KAK Industry 7.62×39 AR Pistol. 

Lehigh Defense Bolts 2

If you’re looking for a new high quality bolt for your AR or just want to have an extra one laying around, you’ll be hard pressed to find nicer ones that these from Lehigh Defense. Check out their full list of available Bolts at www.LehighDefense.com.

Rainier Arms is having their annual one day only Barrel, Bolt and Rail Sale. This is the best tim to find a deal on a whole bunch of different barrels, including some of their awesome fluted models. They also are offering heavy discounts on 4 rail systems including their Rainier Arms FORCE rail and two different Rainier Arms BCGs. To see the special discounted price, use the code “0823” at checkout otherwise you will just see the standard sale price. Item must  say (ODS) in the description which means One Day Sale. Head on over to www.RainierArms.com to GeT sOmE!

Rainier Arms Bolt Barrel and Rail Sale

Had a nice time sighting in / function testing a couple of my newer AR’s at the range the other day. I typically shoot on private land but bench shooting is a good way to get your guns out, put some rounds through them and make sure they are running good. For the most part there were no issues but any AR builder will tell you it only takes one small issue to throw a monkey wrench in there.

620 CIV Tactical SPR AERO Precision AR Pistol Vortex opticsClick to enlarge

The rifle has an upper built by CIV Tactical using receivers are from Tactical Firearms Solutions. CIV Tactical used their excellent 18″ SPR barrel and Matched Bolt that are known for getting some extremely low sub-MOA results. I used an older Bolt Carrier with the supplied bolt and figured everything would be fine. When the rifle wouldn’t eject a single round I knew there was something going on. Instead of just giving up and using the other AR I brought I decided to try to figure out was the issue was. After trying 2 different lowers, 4 different mags and 2 different types of ammo I decided to try a different BCG. Swapped it out and it ran like a Sewing Machine. I know the Matched Bolt is good as it was test fired with that exact Bolt so it’s pretty obvious I can narrow it down to the Bolt Carrier such as a leaky Gas Key. Looks like I threw in my own monkey wrench.  LoL  

The point is if you think logically through your failures and start eliminating possible issues, you can quite often move past the issues with the rifle and still get in some good trigger time. Oh, and bring some tools and small parts with you when test firing a rifle for the first time.  🙂

The rail on the SPR is a Parallax Tactical FFSSR rail. It also has an ATLAS Bipod with ADM mouth and the Stock is the LUTH-AR MBA-1 that you can buy from www.MidwestPX.com. The AR Pistol is all AERO Precision with an Odin Works 10.5″ Barrel, Primary Weapons CQB comp and a KAK Industry Super Sig Tube. Both guns have Vortex Optics…optics.

Out of all of the different parts of an AR that can let you down and fail during a class, range session or worse, the bolt is one of the most common parts to have issues. Could be bad gas rings, extractor issues, broken bolt lugs, etc. Most issues are fixable but its always nice to have an extra bolt or two with you just in case. Rainier Arms has a couple of really nice bolts on sale right now. One is a black Manganese Phosphate & MP Inspected 9310 bolt. The other is basically the same thing but it’s Nickel Boron coated. If you need a good quality bolt you should definitely check these out while they’re on sale at the links below.

AR15 Bolt – 5.56 NATO

Rainier Arms Phosphate Bolt

AR15 Bolt – 5.56 NATO Nickel Boron

Rainier Arms Nickel Boron Bolt

About 4 weeks ago we introduced you guys to the really nice new 5.45×39 Melonite treated barrel from VooDoo Innovations which is the sister company to Adams Arms. I was personally excited about this as I’ve been considering building a 5.45×39 upper. You’re probably wondering “Why 5.45×39?”. The biggest reason is that you can find this ammo for around 15 cents per round which is less than half the price of any 5.56/.223 ammo you can find right now. The biggest hold back was finding all of the additional components needed to do the conversion which consists of a new Barrel, Flash Hider, 5.45 Magazine and the hardest to find part which is the 5.45 Bolt. With the new 5.45 Conversion Kit from VooDoo Innovations you don’t have to do any additional shopping.

Voodoo Innovation banner

The kit has a new Barrel (Carbine or Mid), Flash Hider, 5.45 Magazine and Bolt plus it includes an Extra Power Hammer Spring to ensure proper ignition with each trigger pull. The Melonite treatment to the Barrel (inside and out) and the Flash Hider prevents corrosion from the corrosive Russian ammo which makes it so you don’t have to rush home and clean your gun after every trip to the range. 

Voodoo Innovation 5.45 Complete Conversion Kit 620

As I mentioned when we introduced the barrels, this is a great way to save some money at the range. The more you shoot the quicker you will be able to recoup your initial investment in converting/building a 5.45 upper. I personally will be using this exact kit to build a brand new upper. This will be my first experience with an AR in this caliber and I am very excited to give you guys a full review of how it goes. However, you don’t have to wait on me. This new kit as well as the individual barrels can be purchased online at www.VooDooInnovations.com.

You’ll also want to “LIKE” the VooDoo Innovations Facebook page as they continue to bring exciting new products to the market. Be on the lookout for our 5.45×39 build and review.