First make sure rifle is unloaded.
Then remove receiver from the lower.
Place the lever over the bolt catch.
Place backing plate behind the bolt catch.
Install and tighten screw with provided Torx wrench.
You can now engage and disengage the bolt catch with your trigger finger for rapid operation of the bolt catch. (Note that this lever only works on standard AR15s. Not designed to work on a .308 platform.)
With this adapter it is possible to securely mount a Harris bipod to these rifles without the bipod tilting upward.
First, insure that the rifle is empty.
Then install the spacer and bipod as shown.
Unscrew knurled knob on bipod so you can squeeze the clamping bar to open it wide enough to go over the bipod stud.
Once the clamping bar is over the stud, screw the knob down tight.
In your rifle operating and safety manual, removal of the handguards for standard rifles and carbines is covered on page 23. For some this can still be somewhat challenging. To make it much easier you may find the Handguard Removal Tool very helpful. It’s very easy to use, and you can pop your handguards off by yourself in seconds. Here’s how you use it.
First make sure your rifle is empty.
Now push the removal tool on as shown so the hook end is engaged in the magazine well.
Push down on the two handles evenly to compress the delta ring as far back as it will go and separate the handguards. Sometimes you may still have to tap the seam between them on the edge of a table to get them to separate. Once they have separated you can very easily pull them off.
You can also use the tool to compress the delta ring to reinstall the handguards.
The easiest way to tell if your gas rings are in need of replacement is if you extend the bolt out of the carrier as far as it will go and place it like so on a table.
If the carrier falls down over the bolt under its own weight like this, the rings are worn out and need to be replaced. To replace them simply take the carrier apart as described in the Rifle Disassembly, Cleaning and Maintenance section of your owner’s manual. Use the tip of a razor knife to pluck the rings out of the slot in the bolt, and just chase them around with the blade until they all pop out.
Then take your new rings and with your fingers chase them around the slot until they are all in place. Separate the breaks in the rings so they are not all in line.
With the new rings in place the carrier should no longer fall over the bolt under its own weight and you are good for several hundred more rounds.
First make sure the rifle is empty then remove the upper from the lower receiver.
Remove stock handguards.
Insert the front portion of the upper handguard with the “T” markings on top under the handguard cap. Pull the delta ring back until it’s resting on the handguard.
Put the lower half on the same way then snap both halves into place under the delta ring.
Unscrew the knob on the light clamp then squeeze it to snap the light onto the side rail of the handguard. If you are right handed mount to the left side, if you are left handed mount to the right side.
Tighten the screw to secure the clamp.
The switch on the side is so you can use the pressure switch so the light turns on when you press it and off when you release, or to make it stay on steadily when the pressure switch is hit then released.
To keep the light from turning on when not in use move the safety block over the pressure switch.
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Since the .308’s pistol grip install is a little different from a mil-spec AR15, here are instructions for properly installing the ERGO SureGrip, or any other kind of AR15 pistol grip on the Windham Weaponry .308. To purchase an ERGO SureGrip, please see the link at the bottom of this article.
Note that the little rubber trigger guard spacer that comes with the ERGO grip is not needed on the .308 since the trigger guard is forged into the receiver and not a separate piece.
First make sure rifle is unloaded then push out the pivot and takedown pins and remove lower from upper. Holding the lower upside down remove pistol grip screw with a 3/16″ T-handled Allen wrench.
Pull grip straight up off lower. This will reveal the safety detent spring and the takedown detent spring. The safety detent spring will come out of the pistol grip. Leave the takedown pin detent and spring in the lower receiver and keep the lower on the bench as shown. This way you will not lose the safety detent or the takedown detent or spring.
Usually the pistol grip washer will be stuck in the rubber inside of the grip. Going through the top side of the pistol grip hole with the Allen wrench you can dislodge it from inside. Once you have done that put the washer on the pistol grip screw.
Put the safety detent spring in the hole in the ERGO grip and carefully push the grip straight down onto the lower. Be sure to compress the springs straight down and not to bend them over.
Screw pistol grip screw back on until it is snug and the grip is solidly on the lower. Push rubber plug into the bottom of the grip.
Do a check of the takedown pin to make sure it is still held securely in place by the detent. If it pulls off in your hand remove grip and reinstall using the pictures above as a guide to the proper orientation of the takedown pin.
First, make sure the rifle is unloaded, and then push out the takedown pin and the pivot pin and remove the upper from the lower receiver.
While pulling back on the delta ring tap the seam where the handguards come together on the edge of a table. When the handguards separate remove them from the upper. This may require two hands. If it is too difficult to remove, have another person separate the handguards while you hold the delta ring back.
The largest half of the MFT handguard goes on top. Note the orientation and where the groove in the back of the handguards will fit on the teeth of the barrel nut.
Put the front portion of the top handguard under the handguard cap, pull back the delta ring enough for the back of the handguard to rest under the delta ring. Then put the front portion of the lower handguard under the handguard cap and also pull the delta ring back far enough for it to rest on top of the handguard.
Now squeeze the two halves together until they snap all the way under the delta ring. If they are too difficult to seat all the way by squeezing them together use a plastic or wooden mallet to tap them into place.
Click here to buy the Mission First Tactical Two-Piece Handguard Set:
First make sure the rifle is unloaded. Then remove the lower from the upper by pushing out the takedown and pivot pins. Remove the pistol grip using a 3/16″ allen wrench. By removing the pistol grip it will allow you to make sure the trigger guard ear is able to flatly rest on the wooden block you will use to drive out the roll pin to avoid damage to the lower. When you remove the grip make sure not to lose the safety detent which is in the receiver under the safety, and the detent spring which is in a hole in the pistol grip.
Cut two pieces of two by four and drill a hole in one.
Rest lower on the blocks of wood and support the stock area with the pistol grip as shown.
Slowly and carefully drive out the trigger guard roll pin with a 1/8″ roll pin punch into the hole in the block of wood.
Press in the front trigger guard detent with the punch and remove the stock trigger guard.
The DOA trigger guard should be orientated like this.
Press in the single detent on the front of the trigger guard and insert it into the front trigger guard ear.
Press in the two detents on the rear of the trigger guard and push them into the rear trigger guard ear until they click into the two holes.
Reinstall pistol grip being sure that the detent for the safety is back in the hole in the receiver, and the detent spring is back in the hole in the pistol grip and up against the detent.
These photos show a rather extreme example of a dirty carrier which hasn’t been cleaned in about 5000 rounds.
For cleaning a carrier I like the Carbon Scraper Tool and Wipe Out Tactical Advantage Cleaner (see links below to purchase). Here I just simply applied the Tactical Advantage and used a toothbrush. You can also soak the carrier in this solvent to make carbon removal even easier as it won’t harm the chrome lining. Any places you can’t reach with the Carbon Scraper Tool, you can use a razor blade to carefully remove thick carbon deposits. But if you don’t go 1000 rounds or more without cleaning your carrier you won’t have this much carbon to scrape off. Also note that you can use the part of the scraper used for the bolt tail to clean carbon from the retaining pin area of the firing pin.
Clean and ready to roll!
AR15/M16 Bolt & Carrier Carbon Scraper
Wipe-Out Tactical Advantage Bore Cleaner
First verify that rifle is empty, and then push out the pivot pin and takedown pin and remove lower receiver from upper receiver. Push buffer detent in and remove buffer and spring and set aside.
With the lower on an AR15 lower receiver vise block, loosen stock castle nut with a tele stock wrench.
Screw the castle nut all the way back and pull the end plate back exposing the takedown pin spring and pull the takedown spring out and set aside.
Hold your thumb over the buffer retainer and unscrew the buffer tube. Once it is backed off of the buffer retainer slowly release the buffer retainer but leave it in the lower.
Remove stock and remove the stock endplate and install the QD endplate so it looks like this.
Screw buffer tube back onto rifle all the way in until it comes up to the buffer retainer. Then press the buffer retainer back in and screw the stock around until it goes over the shoulder of the retainer enough to hold it in the rifle but not so far that the retainer binds against the tube.
Now put the takedown pin spring back in its hole in the receiver and carefully push the QD endplate up to the receiver. Compress the spring into the receiver without bending it over and screw the castle nut up to the back of the endplate.
Make sure the stock is straight and tighten the castle nut up against the endplate.
Press the button on the back of the QD swivel and insert it into the socket in the endplate.
Now you are ready to mount your single point sling to the swivel.
Here are links on the Windham Weaponry website to the various parts described in this article:
Q.D. Endplate
Q.D. Sling Swivel
Blackhawk 1 Point Storm Sling for AR15 / AR16
