Below is a pic of the drills & taps I used. III. A ball detent is a simple mechanical arrangement used to hold a moving part in a temporarily fixed position relative to another part. AR-15 Safety Selectors & Ambidextrous Safety Selectors. - (K) 1/4 - 28 Tap This hole goes through to the rear take down pin 1/4" hole. Nav Menu 7. 1 1/8 diameter with the (H) 1 1/8" drill. ... put a drop or 2 of oil on the hole to lube the detent. So I am confident the lower is in the exact location within the jig. Re: Remove safety selector switch on AR-15? AR15Discounts has a wide selection of Safety Selectors for the AR-15 and AR-10 / LR-308 platform. 6 comments. "store bought" AR15 was it has a silver lower receiver. - (F) #40 Drill After the detent hole is drilled, it I will once again use the 2 line scribe method. Instead of scribing the other line, I decided to use a 0.109 diameter transfer punch and set it against the take down pin lug 4. - Calipers Now it was time to tap the buffer hole with the (L) 1 3/16-16 tap. Your AR-15 lower parts allow you to operate all the controls on your firearm and ensure that your rifle functions correctly. You also want to make sure the chips are cleaned off the drill every time you take the drill back into the hole. If the pin barely just protrudes from the bore of the detent/spring hole, the hole is undersized. Introduction - (B) 13/64 Drill remington (in stock) 0.0. Introduction: Next I drilled the front take down pin hole So even without a detent in there it would still stick and barely go safe. After about 5 or 6 turns, you should be able to stop checking the tap, because at that point there is no turning back, you will simply have either done it correctly or not. Unfortunately, that particular detent is about the size of a mouse dropping and just as fun to look for if it rolls off of the work bench. worried about tapping this hole, but its not a big deal at all. - (E) 3/8 Drill Now there is an X and Y scribe line and you can simply drill where these two lines cross. The only difference I could tell between this AR15 and any other one There is no set in stone rule as to which drills you must begin with. M16 4-Way Fire Control Selector. on the pics below to download pdf files I know this may sound a little crazy, but it works. Our Price: $ 2.99. I wanted to use the (D) 5/32 drill first, because usually if you try to use a larger drill into a hole that is already drilled smaller, the larger drill will sometimes chatter since its not taking a full cut. Install the selector drum with the detent track on the right-hand side to correspond with the detent hole in the receiver. The end of the hole for the detent should be centered in the wall of the hole you drilled for the selector. AR-15 Offset Safety Selector makes it a bit easier. Nav Menu 4. IV. I am trying to build a lower and am encountering issues with the selector. Here is a pic after the hole is drilled And below is a pic showing the completed safety selector detent hole drilled I used the dremel with a sanding stone and ground a little indention for the clearance. February 16, 2021 - (C) 1/8 Drill - (J) #3 Drill switch hole. The detent cap goes in the safety selector hole on the other side of the receiver. - Columbian Clamp - 15 long have to use new drills, you just need to | Tutorial, - Add to Wish List Add to Compare. side of the selector. Insert the selector detent into the hole in the underside of the lower receiver on the right side of the pistol grip area. Uh, guys, the detent that holds the safety selector in can be removed by loosening/taking off the GRIP, not the stock. The jig makes this one of the easiest steps in the 80% project. This distance was scribed on the front and rear of where the trigger guard pin holes will be The blueprint can be used for reference detent hole will be. When drilling this hole, make sure you go SLOW, take small pecks, and use plenty of cutting fluid. Features:Mil-SpecHigh grade stainless steelFits: AR-15Includes:Safety Detent-100 PcsSafety Detent Spring -100 Pcs There are easier and harder ways to complete this project, it all depends on what tools you have access to. Nav Menu 6. V. starting the 1/2" drill more forgiving Free shipping and returns on The next step was to drill the hole So that is why I want to show how somebody can complete an AR15 80% lower with typical tools usually found in their garage. save. Next I drilled the trigger pin hole Large Flat Head Screwdriver (at least 3 1/2″ shaft) Assembly Instructions. Some people dont even drill these holes, but I feel having a trigger guard makes for a safer firearm. - (A) 1/4 Drill Then I used the (G) 1/2" drill to drill down approximately 1/4". Next I scribed the other line for the 1/2" hole. Doing this will make This goes back to what I mentioned earlier about using a bigger drill to open up a smaller pre-drilled hole. Set the pistol grip and spring aside (fig 21). Here is a straightforward rundown on how a safety selector works on an AR-15 rifle. Here are a couple pics to show you what Ill be starting with. The first line I scribed was the distance from the back of the buffer tower to the Long story short it's a ZT 0566, apparently the earlier batches did have a detent hole. Conclusion: The next hole I decided to drill was the front take down pin detent hole. join the home builders. To see how well everything lined up, I inserted the (B) 13/64 drill into the jig and it slid right through the receiver without any problems at all. and drilled the hole Stay in the know about product updates and Ghost … If you happen to get this hole off location a little bit, you can simply open up the hole thats in the pistol grip itself. The drill depth of this detent hole is 1.125 from the center mark surface. Bolt Catch plunger (threaded) hole Take down detent hole (both) Buffer retainer hole Buttstock threading Magazine catch spring and catch button Safety selector detent hole . Shooting Innovations AR15 Ambi 60/90 Safety Selector . With this center mark it will give the drill point a place to start. Close. All information contained in this tutorial is for educational purposes. The last step is to drill the trigger guard pin holes. Unless otherwise stated, every hole is drilled all the way through the receiver. I drilled the detent hole first with a (F) #40 drill. Like the previous hole drilled, the location of this detent hole isnt critical either, so I used the two-line scribe method again. v757b , Oct 21, 2012 The 80% AR15 lower receiver is now 100% complete firearm. Savings: $1.00. ruger (in stock) 0.0. As you probably noticed several of the holes in the AR15 lower receiver are not critical at all. Contact. Its a little bigger than what is called out on the blueprint, but in my experience I would rather have this hole a hair bigger because the last thing you want is the spring or detent getting stuck in this blind hole. With a little patients anybody can do it. With the safety selector in place, turn the receiver upside down and place the detent in a hole located on the left-rear portion of the receiver. The hole for the magazine catch was already drilled when I received my 80% lower so I didnt have to worry about drilling that hole. Below is a pic of this hole being drilled Below is what it looked like after these holes were drilled Looks like it was anodized over those mars, and the selector detent hole wasn't drilled right. The trigger group AND safety selector are now matching and when in their original lowers worked just fine. If it doesn’t, take the grip back off, and make sure there are no obstructions in the detent hole. If you’re looking for an AR-15 Safety Selector such as an Ambi / Ambidextrous Safety Selector, Short Throw Safety or Mil-Spec Safety for your AR, you’ve come to the right place. The detent pin should be able to fall through the bore into the selector shaft hole. Heres a pic showing that To locate the drill to the pre-drilled hole, I simply kept moving the jig and turning the drill until the drill was even on all sides of the hole. Although viewing those projects is neat, its usually not possible for the average guy to use CNC equipment to complete his lower. Griffin Armament GAS Ambi Safety Selector Kit . The next set of holes I drilled were those located on the buffer tower. - Irwin Quick Grip - 8" & 12 I also used a 2x4 that was 7.25 long to support under the buffer tower Posted by on February 15, 2021. Please visit us again. Contact us today 410-266-1588. ar 15 safety selector spring and detent. Insert the port side of the Ambi Safety Selector into the Lower Receiver, pointing to the safe position. BTW the the selector detent hole is two sizes at different depths. Choosing the right lower parts not only allows you to customize your AR to best suit your needs, but also allows for smooth operation. There are several ways to complete an 80% lower. Tools Used Once I was sure both surfaces were flush, I tightened the two MSRP: $3.99. I wouldn't mind if this was a Blem...but it's not, so that's kind of lame. To scribe the location lines, youll need an X and Y measurement, and then you drill where the two lines cross. You dont have to use a clamp, it just makes the job a little easier I. Buy AR-15 Safety Selector Factory replacement gun parts, accessories and gunsmithing service on most manufacturers including Browning, Winchester, FN America, Beretta, Benelli Franchi, Stoeger, Remington, Bushmaster, Marlin, Sig Sauer, HK and many more. - (D) 5/32 Drill The drill press was operated at the lowest spindle speed of 540 RPMs throughout this project. The M16A2 uses a burst 3-way selector with SAFE, SEMI, and BURST positions. side of the selector. II. The next step is to use the (I) #42 aircraft extension drill to drill the bolt catch pin hole. I used all new drills and taps to insure Lay the drill jig on its right side and clamp in a vise. You will need to set the jig on a flat object so the bolt heads dont get in the way. - 3/16 Allen Hex Wrench - 12 Craftsman Drill Press - 5 speeds (540-3600 RPM) Nav Menu 3. Simply slap jig on the receiver as show below and secure it with a C-clamp. safety selector detent, blue. Date: 6/5/07, *** Nav Menu 8 Home > AR-15 Parts > AR15 Selector / Safety Spring & Detent : AR-15 Selector / Safety detent and spring for AR15 and AR10 weapons. If you try to apply a lot of down force on the drill bit, then the drill bit will dig itself in the material and you wont be able to turn it with your hand. Below is a pic showing my setup during the drilling process and side of the tap. Using the block will insure the area you are about to drill is flat. This drill is used for the safety selector switch hole. Take the same precautions when drilling this hole as taken with the front take down pin detent hole safety selector detent not working. - Transfer Punch Set Granted this was an non anaodized lower. How does an AR-15 safety work? V. Conclusion. it level both front to back and side to side. Note the detent hole in the right side of the receiver selector hole. Then barely start the tap into the hole and insure it stays level with the I set the jig on the drill press table with the buffer tower facing down, then took my calipers and measured up 1.931 and made a scribe line. It doesn't seem to want to click to engage safety or click to select fire, just kinda swings loose. How does an AR-15 safety work? To better support the jig and receiver, I used a Columbian Clamp. Such will give a loose selector. In order to get the next scribe line I had to remove the receiver from the jig, but its not a big deal because its easy to re-align the receive in the jig. If you dont remove the chips, they will get compacted in the hole and cause the drill to break or You don't Slide the safety selector detent into place in the hole beneath the lever and place the detent spring into place on the pistol grip. The reason your safety selector is loose may be due to the detent hole that is undersized, or the shelf could be too high, and it doesn’t let the detent stick out far enough. When the safety is squeezed, the trigger will rotate to lower the sear face at the front of the trigger. • One (1) selector drum • One (1) full-size safety lever • One (1) minimized safety lever • One (1) safety detent … IV. I used a (F) #40 drill for this hole. safety selector detent not working. February 16, 2021 avoid any possible problems. Our Price: $ 2.99. Install your selector and pistol grip with this quick and easy tutorial. I scribed the first line at a distance of 2.430 from the top of the jig to the trigger guard area. Again I locked the spindle in with the (F) #40 drill touching the center marked surface and set the drill depth to 1.125 I clamped a flat surface to the top plane of the jig and then scribed a line at 0.250 Tools Used: Having a safety selector in place serves as a useful rifle component for helping you operate your AR-15 shoot in an effective and safe manner. The optional items in the Tools Used list If you go too fast, it would be easy to break this small drill off in that deep hole. run a drill (same size as hole) completely through it. Tutorial Next, turn the receiver upside down. Go to GRC’s “Perfect Passwords” page. Nav Menu 5. I scribed a line that was 0.748 from the left side of the receiver to the hole location Below is a pic of the rear take down pin hole being drilled Be patient when using this method because itll only work if you remove a little bit of material at a time. Again, go slow and use plenty of cutting fluid and you shouldnt have any problem tapping this hole by hand Incluso los atletas más avanzados que utilizan actualmente ATHLEAN-X pueden encontrar el programa un reto debido al estilo único de entrenamiento que ofrece. 416, mr556 236687 detent, fire control s, hk416/m. It uses a (D) 5/32 drill for a depth of 0.188” and a (C) 1/8 drill all the way through the hole until you reach the 3/8 selector switch hole. AR-15 Safety Selector Detent Due to overwhelming demand, we are experiencing a 3-4 business day delay in shipping and FFL orders are 10-14 days delayed. I then used a center punch to mark the locations of the two holes Posted by 7 months ago. This is a little fast for this size of a drill. To accomplish this, I touched the drill off on the top surface of the jig and locked the spindle in that position I decided to start with the (A) 1/4 drill. Add to Cart. 5D tact and 80-lower. I wasnt too worried about the life of my CNC jig since I usually machine all of my stuff on a CNC machining center, but if you want to extend the life of your jig, you can use transfer punches to center mark the locations of the holes to be drilled instead of actually drilling through the jig. diagram will show you which size drill I. So what I demonstrate here may not be the way you finish your 80%er, but its what I thought was the easiest at the time with the tools I had access to in my garage. From the top surface of the jig, you need to drill down 1.500. center of where the safety selector Next, take your lower receiver and flip it upside down. And below is a pic showing the jig level front to back The depth of this hole isnt critical at all, because its just clearance for the little tab on the buttstock Next I put the (C) 1/8 drill in the chuck and drilled through the hole until I reached the 3/8 selector hole The reason your safety selector is loose may be due to the detent hole that is undersized, or the shelf could be too high, and it doesn’t let the detent stick out far enough. I bead blasted the lower before I started this tutorial to give a better contrast of where cuts will be made. - Dremel Tool w/ Grinding Stone & Sanding Bands. Then I set the drill depth to 0.188 10 ft-lbs of torque. Nav Menu 8 Home > AR-15 Parts > AR15 Selector / Safety Spring & Detent : AR-15 Selector / Safety detent and spring for AR15 and AR10 weapons. Then I used the (K) 1/4-28 tap to finish up the hole. Usually the moving parts slide with respect to each other, or one part rotates within the other. Rev. ... not that the detent was too tight against the selector. - (H) 1 1/8 Drill I will need the receiver back in the jig to use this method. You may also contact us via email at info@brownells.com. Note the detent hole in the right side of the receiver selector hole. I applied cutting fluid to the drill before drilling each hole. 3. Hole Size Diagram CNC Gunsmithing www.cncguns.com A 1/4 Drill B 13/64 Drill C 1/8 Drill D 5/32 Drill E 3/8 Drill F #40 Drill G 1/2 Drill H 1 1/8 Drill I #42 Aircraft Ext. Make sure to line up the flat edge on the inside of the cap with the flat edge on the safety selector cam, as it will only go in one way. I wrapped emery sand paper around the shaft of a smaller drill bit and lightly sanded it. All of the internals from the AR15 parts kit fell right into place. In this tutorial I will demonstrate how easy it is to complete an 80% AR15 lower receiver using the CNC Gunsmithing jig. It uses a (D) 5/32 drill for a depth of 0.188 and a (C) 1/8 drill all the way through the hole until you reach the 3/8 selector switch hole. Below is a pic showing the jig is level left to right Tutorial: I started with an 80% AR15 lower receiver from Kevin (Email: As you can see in this
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