Aero Precision 308AR Standard Lower Parts Kit APRH100160

by Donald Sullivan | Oct 4, 2015 | Lower Parts Kits | 0 comments

Aero Precision 308AR Standard Lower Parts Kit

Aero Precision 308AR Standard Lower Parts Kit APRH100160 helps you to build a custom .308 AR from the ground up. Mil- spec dimensions and coating ensure the highest quality and correct component interface.

Aero Precision 308 Standard Lower Parts Kit APRH100160Features:

Aero Precision M5 (.308) Complete Lower Parts Kit
The custom takedown and pivot pins are made to work with our M5 lower. They will work with DPMS-pattern lowers as well but will stick out further.

Aero Precision 308 AR Standard Lower Parts Kit Includes:

Takedown/pivot Spring
Takedown/pivot detent
Trigger/hammer pin
M5 .308 Takedown pin
M5 .308 Pivot pin
M5 .308 Bolt Catch
Bolt Catch Spring
Bolt Catch Buffer
Bolt Catch Roll pin
Safety Selector
Safety Selector Spring
Safety Selector Detent
Buffer Retainer
Buffer Retainer Spring
A2 Pistol Grip
Pistol Grip Screw
Pistol Grip Lock Washer
Trigger Spring
Hammer Spring
Disconnector Spring
Magazine Catch Body
Magazine Catch Spring
Extended Magazine Catch Button
Hammer
Trigger
Disconnector

Aero Precision 308AR Standard Lower Parts Kit

FAR 308AR Lower Parts Kit Without Trigger

by Donald Sullivan | Oct 4, 2015 | Parts, Lower Parts Kits | 0 comments

Fulton Armory FAR 308AR Lower Parts Kit Without Trigger

Fulton Armory – FAR 308AR Lower Parts Kit Without Trigger

Back in 2008 or so there were far less manufacturers of 308AR parts and with the most anti-gun President in history there was suddenly a shortage of parts. Items like RIFE BARRELS, BOLT CARRIER GROUPS and LOWER PARTS KIT‘s. Fulton Armory was like my personal secret stash of gun parts.

Compatibility – Fulton Armory FAR-308 and DPMS LR-308 Pattern Lower Receivers

Includes:

Front Pivot Pin
Front Pivot Pin Detent
Front Pivot Pin Spring
Rear Takedown Pin
Rear Takedown Pin Detent
Rear Takedown Pin Spring
Magazine Catch
Magazine Catch Button
Magazine Catch Spring
Safety, Safety Detent
Safety Detent Spring
Buffer Retainer
Buffer Retainer Spring
Titan A2 Pistol Grip
Pistol Grip Screw
Pistol Grip Lock Washer
Titan Heavy Duty Bolt Catch
Bolt Catch Buffer
Bolt Catch Spring
Bolt Catch Screw.

FAR 308AR Lower Parts Kit Without Trigger

308 AR Bolt Catch Screw | AR-10 Bolt Catch Pin Comparison

by Donald Sullivan | Oct 4, 2015 | Compatibility, Lower Parts Kits, Parts, Tools | 1 comment

308 AR Bolt Catch Screw | AR-10 Bolt Catch Pin Comparison

Picture of a Falkor Defense 308 AR Bolt Catch Screw Bolt Catch Pin

308 AR Bolt Catch Screw or Threaded Roll Pin

308 AR AR-10 Bolt Catch Pin – The bolt catch pin, one of the smallest parts on the AR 308, AR-10 and AR-15 platform weapons is a part that can stop an AR-10 308AR build dead in it’s tracks if you didn’t purchase the correct one or the correct LOWER PART S KIT for your STRIPPED LOWER RECEIVER. Here’s why. The AR-15 platform uses a roll pin and that’s taken for granted when shooters move up to the AR-10 and 308 AR platforms. Unfortunately this is where the topic gets muddy.

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Armalite AR-10B Lower Parts Kit 10LRPK-T

Armalite AR-10 rifles use a traditional roll pin setup in the AR-10 lower receiver so their Lower Parts Kits obviously include the pin. If you use an AR-10 LPK on your non Armalite 308 AR you will need to order the threaded “Bolt Catch Screw” seen elsewhere on this page. I typically keep the Armalite LPK’s on hand as well as a few of the bolt catch screws.

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Armalite AR-10 and AR-15 EL0220 Bolt Catch Roll Pin

The Armalite AR-10 utilizes this roll pin, Armalite part number EL0220 which is the same as their M-15/AR15 rifles. Alternatively DPMS LR-308 based weapon utilize a proprietary hybrid pin/screw (mentioned above).

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DPMS AR 308 Bolt Catch Screw

The DPMS 308 Bolt Catch Screw is essentially set screw who’s threads have been removed from one end creating a hybrid screw type pin. Now unfortunately though not all DPMS LR-308 platform based LOWER RECEIVERS utilize the hybrid BOLT CATCH PIN. Some manufacturers utilize the roll pin method identical to the Armalite AR-10.

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308 AR, AR-15 and AR-10 Roll Pin Tools

The process of installing the Bolt Catch Pin is probably one of the most difficult tasks for the inexperienced to perform. Not done properly it’s easy to damage the finish of your lower or worse, break something. Fortunately a little grease, a roll of masking tape and some special roll pin punch make it easy. Visit our AR-10, 308 AR Roll Pin Tools Page.

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Links to Other 308 AR | AR-10 | AR 308 Content

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308AR AR15 AR-10 Roll Pin Tools

by Donald Sullivan | Oct 4, 2015 | Tools | 0 comments

308AR AR15 AR-10 Roll Pin Tools

AR 308 AR-15 AR-10 Roll Pin Tools

308AR AR15 AR-10 Roll Pin Tools – One of my pet peeves from folks who assemble their own AR15 AR-10 308 AR rifles is the sloppy installation of the various roll pins the rifles require. In all fairness there are a few roll pins that present a challenge to the inexperienced and experienced alike. The BOLT CATCH ROLL PIN comes to mind as does the FORWARD ASSIST ROLL PIN. The BOLT CATCH ROLL PIN is positioned quite close to the body of the LOWER RECEIVER and requires a ROLL PIN PUNCH to have a flat side to properly install.

I have searched the internet shooting forums and websites as well polled user of my own forums for a better way to install roll pins. In that search I found some creative approaches but nothing that worked any better than my own approach of taping a ROLL PIN to a ROLL PIN PUNCH. Well that was then this is now. Brownells offers a ROLL PIN STARTER SET they refer to as ROLL PIN HOLDERS. The pins are available individually or as a set for just under $50. I opted for the set.

BROWNELLS 308 AR AR-15 AR-10 ROLL PIN HOLDER OPERATION

The roll pin holders are genius. As seen in the image above the ROLL PIN HOLDERS are simply a punch that has a hollow tip the diameter of a given roll pin. Place the ROLL PIN in the correct ROLL PIN PUNCH HOLDER and with a plastic faced or brass hammer carefully tap in the ROLL PIN. To prevent damage to the the WEAPON stop hammering before the ROLL PIN HOLDER contacts the part that accepting the ROLL PIN. At that point switch to a regular ROLL PIN PUNCH, the type with a half round nose and finish driving the ROLL PIN flush.

NOTES ON ROLL PIN HOLDER USE

Cover any part of your weapon with masking tape followed by duct tape in an area that could be damaged from ROLL PIN INSTALLATION. The masking tape serves as a great protector for your weapon. The underlying masking tape makes duct tape removal a simple process.
Grease – I like to apply a small amount of grease in the ROLL PIN HOLE to help with proper installation. I also add a small amount of grease to the inside of the ROLL PIN HOLDER to help prevent the ROLL PIN from falling out and getting lost should I have a brain lapse.
For finishing the BOLT CATCH ROLL PIN INSTALLATION I suggest the BOLT CATCH PIN PUNCH from Brownells. It is almost entirely flat on one side making installing the BOLT CATCH ROLL PIN the rest of the way a breeze.

Brownells Roll Pin Holder Set

Hollow-Ended “Starter” Punches For Roll Pins

The Brownells Roll Pin Holder Set holds roll pins perfectly aligned for starting correctly. Especially good on the tiny, tough-to-grab ones, or those in tight places. 1/16″ is notched to clear M16/AR-15 rear sight. 3.5mm excellent for holding the pin that retains the breech block on Sig handguns. Finish driving with roll pin punch. O/A in chart means “Overall”. Available individually or as a set of 5.

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Brownells Bolt Catch Pin Punch

The Brownells Bolt Catch Pin Punch is a specially made, slab-sided punch clears left side of the magazine well allowing bolt catch pivot pin to be removed by driving it to the rear.

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Links to Other 308 AR | AR-10 | AR 308 Content

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Armalite Launches “Get Some Ammo” Sales Promotion

by Donald Sullivan | Oct 4, 2015 | Blog | 0 comments

Armalite Nexus Ammo

Armalite Launches “Get Some Ammo” Sales Promotion

(Geneseo, IL – Oct 7, 2015) For the fourth quarter of 2015, Armalite has partnered with its sister company, Nexus Ammo, to introduce the “Get Some Ammo” sales promotion.

For new Armalite firearms purchased from a dealer between October 1^st and December 31^st, 2015, your first shots are on us! M-15 purchases will receive 100 rounds of Nexus Ammo’s .223 Rem 77gr Match HPBT and AR-10 purchases will receive 80 rounds of .308 Win 175gr Match HPBT (approximate value of $110).

Nexus Ammo’s Match Grade line of ammunition is designed to exceed the expectations of the most discerning customers. Using top-quality components and proprietary loading methods, Nexus is able to achieve tolerances rarely seen even in hand-load applications, in our factory ammunition. The “Nexus Method” incorporates quality control requirements not present elsewhere in the industry, often resulting in single digit standard deviation. For information on Nexus Ammo’s Match Grade products, please visit www.nexusammo.com.

The “Get Some Ammo” promotion is available for a limited time. Please visit www.armalite.com for details and limitations.

About Armalite: Armalite is the originator of the legendary AR-10^®rifle. For 60 years, Armalite’s commitment to excellence has made our firearms the choice of military, law enforcement and sport shooters worldwide. Armalite has one of the broadest product lines in the firearms industry. We manufacture semi-automatic rifles in 5.56mm and 7.62mm calibers, as well as long range bolt action rifles in .308 Winchester, 300 Winchester Magnum, .338 Lapua, and 50 BMG. Armalite is a subsidiary of Strategic Armory Corps.

About Nexus Ammo: Nexus Ammo provides discerning shooters high impact solutions through unparalleled, patent-pending automation processes. The “Nexus Method” meticulously produces ammunition to exact tolerances equal to the attention of hand loading. Our unique machinery and automation allows us to build ammunition to exact specifications, starting with the raw materials. This method is proven to provide a consistency in weight in every cartridge, delivering the quality and ballistic performance you can rely upon.

You can depend on Nexus Ammo to deliver a full ballistic spectrum of ammunition performance for your tactical, defense, or hunting needs. When you require consistency, accuracy, and repeatability… Nexus is your solution.

About Strategic Armory Corps: Strategic Armory Corps was formed with the goal of acquiring and combining market-leading companies within the firearms industry. Each company that is brought into the SAC family fulfills a consumer need with their brand of niche products. To date, four highly respected manufacturing companies have been acquired with a fifth in the start-up phase. These companies strategically fit together to form a strong base of products and services that are designed to meet the expectations of military, law enforcement, commercial groups, and individual users around the world

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Aero Precision Battleworn Orange Grey AR15 Builder Set APPG100025

by Donald Sullivan | Oct 3, 2015 | AR 308 Receivers, Aero Precision | 0 comments

Aero Precision Battleworn Orange Grey AR15 Builder Set APPG100025

Aero Precisions October limited run builder set is for the AR15 platform and NOT 308AR/AR-10 (At times the M5 308 AR versions are available). Too interesting not to share here though. BlownDeadline is certainly taking Cerakote to a new level these days and the “Battleworn Orange Grey” finish is a testament to that. This picture above reflects a 15″ KeyMod handguard, M-Lok is also available. Visit Aero Precision for ordering information.

Aero Precision Battleworn Orange Grey AR15 Builder Set APPG100025

The October Monthly Builder Set from Aero Precision features a custom Battleworn Orange/Grey Cerakote finish done by BlownDeadline, an industry leader in custom firearms coatings! These pieces feature a custom blend cerakote and are hand finished with no two sets being the same.

This package deal includes the finished pieces you need to assemble your own Battleworn Orange/Grey AR15 M4E1 Rifle, including an M4E1 Upper Receiver, Gen 2 Lower Receiver, Enhanced Handguard, and Billet Trigger Guard all custom finished in Battleworn Orange/Grey. Stand out at the range with a unique and eye-catching build. This is a one time offer for this color – once they are gone, they are gone!

Includes:

M4E1 Enhanced Upper Receiver
AR15 Gen 2 Stripped Lower Receiver
15″ KeyMod or M-LOK Handguard
Billet Trigger Guard
All 4 pieces are finished in Battleworn Orange/Grey

Aero Precision APPG100025 Battleworn Orange Grey AR15 Builder Set

View our entire directory of 308 AR & AR-10 Manufacturers

Eotech | Cold Weather Distortion | Reticle Fade | Thermal Drift | Parallax Issues

by Donald Sullivan | Sep 30, 2015 | Eotech, Blog | 0 comments

Eotech | Cold Weather Distortion | Reticle Fade | Thermal Drift | Parallax Issues

Dear Valued EOTech Customer:

EOTech values your business and is committed to providing you with the highest quality products. Provided below is information on four issues that may affect your EOTech Holographic Weapon Sight (“HWS”). EOTech has not issued a recall of any of its sights, and many of our customers continue to use their sights regularly. EOTech nonetheless wants you to be satisfied and is offering refunds at your option.

Depending on the age of your sight and the ways in which you use it, you might or might not be affected by these issues. Many HWS users experience no issues with their EOTech sights especially if (for example) the sight is used in close-quarter ranges, the target is in the center of the window, or the sight is re-zeroed frequently. We hope the information presented below is helpful.

Eotech Cold Weather Distortion

Cold weather distortion generally does not affect EOTech-branded HWS manufactured after March 2008. The historical issue with cold weather distortion was that the HWS’s aiming dot experienced distortion of size and shape when the sight was exposed to temperatures below 32° F. This became worse as the temperature approached -40° F. It had virtually no effect in warmer temperatures or at the close-quarter ranges where the HWS is typically used, because at those closer distances the distortion would not have a significant effect on the point of impact. Although generally unnoticeable to the naked eye, the distortion existed at colder temperatures.

Impact: Generally none for EOTech-branded sights manufactured after March 2008. For sights manufactured earlier, the sights affected are those used in cold weather for longer range shooting.

Eotech Reticle Fade (Moisture Incursion)

Reticle fade as a result of moisture incursion generally does not affect sights manufactured after July 2014. Even for sights manufactured before that date, the effect may not be substantial. The issue is that atmospheric moisture conditions can lead to the HWS’s reticle fading or eventually disappearing. It typically is noticeable first when the reticle appears to dim at the edges of the sight window. The sight’s age and environmental exposure are factors that accelerate reticle dimming. In many cases, however, this condition can be mitigated by increasing the brightness of the reticle, using the sight’s brightness controls.

Impact: None for any sights manufactured after July 2014. Potentially minimal impact for sights manufactured before that date, depending on the sight’s age and use. Whether your sight will experience reticle fade will depend on the factors discussed above.

Eotech Thermal Drift

EOTech’s sights experience a point of impact shift away from the point of aim when the sight is exposed to a temperature different from the temperature at which the sight was zeroed. After zeroing the sight at or near ambient temperature (73°F), the zero position will shift during operating temperature changes. The sight has the potential to shift approximately +/- 5 Minutes of Angle (“MOA”) at -40°F and 122°F. Due to thermal drift, the sight may not return to zero. The sights have the potential of approximately a +/- 2 MOA zero shift upon return to ambient (73°F) after being exposed to any temperature between -40°F and 122°F.

This shift results from natural thermal expansion or contraction that is present in various materials as they are heated or cooled, and is greater the more extreme the temperature change. For example, when a sight is zeroed at 70˚ F then acclimated to 50˚ F, less shift will occur. On the other hand, if zeroed at 70˚ F, then acclimated to 0˚ F, more shift occurs. The shift may not be significant to shooters who use their sights at close-quarters ranges. For instance, 5 MOA is a shift of 1.25 inches at 25 yards, and is 5 inches at 100 yards. It also is worth noting that thermal effects are evidenced to varying degrees in common optics, as well as in rifle barrels and ammunition as the environmental conditions change. In all events, to achieve optimum accuracy, the sight zero should be verified whenever the sight is exposed to marked temperature changes, and the sight should be re-zeroed as necessary.

There is no repair currently available to eliminate thermal drift. If your HWS experiences a degree of thermal drift that is unacceptable to you, and re-zeroing does not address the issue to your satisfaction, please contact EOTech, as described below, to obtain a refund of the purchase price.

Impact: The sight’s zero will be affected at varying operating temperatures. This may be minimal for sights used at close-quarter ranges and may be corrected by re-zeroing the sight.

Eotech Parallax

All optics experience varying degrees of parallax depending on use and operating conditions. Parallax is an apparent change in the point of aim resulting from a change in the position of the shooter. EOTech’s sights have little parallax when the reticle is in the center of the viewing window, which is the optimum sighting position and also is the correct place for zeroing the sight. On the other hand, if the user is looking through the sight at the outer edge of the sight window – an off-axis view – the parallax error might be up to 4±3 MOA (or a total of 14 MOA across the viewing window) at 71˚ F (for a sight properly zeroed). In other words, parallax can increase as the user’s view approaches the edge of the EOTech viewing window. To put this possible amount of off-axis error into perspective, 7 MOA equates to 1.75 inches at 25 yards or 7 inches at 100 yards. Viewing through the center of the window achieves the least parallax error. Parallax may increase as temperature changes from 71˚ F. At operating temperature extremes of -40˚ F or 122˚ F, there may be an additional 4 MOA of parallax.

Impact: Virtually none if the shooter is aiming through the center of the sight. Relatively small effect at close-quarter ranges, if the shooter is aiming through the very edge of the sight’s window. As described above, the effect is greater when the shooter is aiming off-center, at longer ranges, or at temperature extremes.

Customer Return Policy
We sincerely appreciate your business and will do our utmost to ensure your satisfaction. If you desire a full refund of your purchase price (plus shipping costs), please let us know by completing the form at www.eotechinc.com/return-authorization-request-form.

If you have any questions, please call our Customer Service Department at (888) 368-4656 or email us at support.eotech@L-3com.com.

Sincerely,

The EOTech Team