Tag Archives: AR-15

HM Defense announces the HMBTM Bolt

October 2017
Mt. Orab, Ohio – HM Defense announces the release of its all-new HMBTM Bolt, an enhanced durability bolt for M16, AR-10 and AR-15 rifles. The HMBTM Bolt corrects a natural weak point in existing Mil-Spec M16, AR-10 & AR-15 bolts where the cam pin hole passes through the bolt. Under extensive use, including the stress of combat, a standard Mil-Spec bolt can fail at the cam pin hole location.


The HMBTM Bolt by HM Defense eliminates the pass-through cam pin hole and replaces it with a cam pin socket and tapered cam pin design. This new patent-pending design eliminates the natural weak point of Mil-Spec bolts by significantly increasing the amount of metal (and strength) at the cam pin location. The result – No more broken bolts!
“The HMBTM Bolt design provides a substantial improvement in long-term durability over the existing Mil-Spec bolt,” said Clay Barker, General Manager at HM Defense. “Every M16 and AR rifle can benefit from our new HMB TM Bolt design”
Additionally, the HMBTM Bolt reduces contact between cam pin and firing pin, enabling smoother operation of firing pin, bolt lugs and aft gas rings. The new cam pin socket also retains lubrication for extended operations.
The HMBTM Bolt is 100% compatible with Mil-Spec M16 & AR-15 BCGs and can be installed as a drop-in bolt replacement in any existing M16 or AR-15 rifle. The HMBTM Bolt will be standard on all HM Defense HM15 rifles and available as an HM Defense bolt replacement kit or in a complete HMBTM Bolt Carrier Group starting in September 2017.

For more information on the HMBTM Bolt and other HM Defense technologies, please visit HMDefense.com.

The 50 States of AR-15 1st UPDATE – Mid-Evil Industries

As we mentioned in the past The 50 States of AR-15 project is living project. That means the rifles may have updates from time to time, with new products coming out, and changes in legislation ect. So Here is our first rifle to be updated. The California rifle received the Mid-Evil Industries TX3 & 360 Degree Vertical Fore Grip (VFG). The 360 VFG is pretty slick and allows the user to further customize how they manipulate the rifle. The TX3 which comes with a Ambi QD end plate is a nifty tool that can be used to pop those tight take down pins. Check out the video for more info.

#HaveFunShooting #The50StatesofAR15

Rifle Rack or Guitar Stand?

So I was looking at some options for a rifle rack, I recently picked up a wall mount rack however I decided for now I may not want to put holes in the wall of the rental home. Of course it has to be something relatively cost effective. (You know more money for ammo and all) So I remembered I saw a while back someone using a guitar stand for a rifle stand. So I started looking at options on Amazon of course. and came across the one above and ordered it. While I’m writing this my order has yet to arrive. Meanwhile I posted the link on my facebook page, and several friends thought it was a nice idea. Philip from Ground Zero Precision who supplied the photos below found a slight modification for the ones he bought which helped it work better for this application as shown below he moved the positioning of one of the cross bars at the bottom, a very simple modification of course to help cradle the stock of your rifle.

These can be purchased on Amazon by clicking the link below:

Want to build a cheap AR-15?

So you want to build a Cheap / Low cost / Budget AR-15? Well here is a video dedicated to that… In this video we will show you how to build an AR-15 lower receiver for around $100. We use an FMK AR-1 Extreme Polymer lower receiver. We will be following this video with a part 2 building a low cost/budget upper receiver. Then of course we will be testing out the complete rifle.

Thanks for watching, and as always “Have Fun Shooting…”

-BigGunner81

The 50 States of AR-15 Update – W/ Maps

So Laura found this cool website, that allows you to click on states to show which ones you may have visited. Well she suggested this could be a cool way to make a map of the states that have we have completed rifles for. I took it one step further and made to 2 maps the first with the red states showing completed rifles (yes 4 are currently completed with several more nearing), and then one in green showing the states we have receivers for or currently in transit to us.

More videos will be coming soon, we are hoping to secure a barrel for the Arizona rifle which is the last component needed to complete the rifle. And for those who have been following on Instagram & Facebook you may have seen some of the photos of the progress. It’s a pretty slick rifle, with components from KE Arms, Elftmann Tactical, GuntecUSA, Young Manufacturing, & our friends from BeatenZone Manufacturing. Stay Tuned…. & Till next time… “Have Fun Shooting…”

Laura’s 1st “How To” video – Elftmann Tactical AR15 Ambi Speed Safety

Here’s a quick little video Laura made showing how to install an Elftmann Tactical Ambi Speed Safety (Push Button Safety) for your AR-15. This safety is pretty slick, and super quick (hence the name). Check them out at www.elftactical.com and see their line up of AR15 triggers and other components. Elftmann Tactical is an Arizona based company and you will see their products in the upcoming Arizona rifle build of The 50 States of AR-15 project.