SCAR Enhancement products by HDD TACTICAL, these products are done to a high quality with professional use in mind. We are proud and honored to supply units such as the Elite Navy SEALs, Military personel, Law Enforcement needs and Private Security Contractors working in Iraq, Afghanistan and the Congo. We subject these products to rigorous testing at our private Ranch with 1600 meter/1 mile range etc. Item samples are then sent to the units and they put them through their testing program before being adopted.

 

    

The pistol grips we modify and stock are the best ones we've found so far for reliable and safe use on the Scar platform. Other brands of grips we've tried work OK but with the material removed to fit the larger Scar grip pod makes the grip a little thin, not mentioning brands here, remember these grips were intended for use on AR15/M16 weapon systems and are good on those weapons. After Scar mods on some grips, the strength and integrity is compromised so we won't sell them. Sure for Civvy use the weapon is not subjected to much stress and a broken grip may not raise much drama but we supply serving Law Enforcement and Military Professionals who demand "in the field reliability". If a pistol grip breaks off the weapon while in harms way then the mission just got a lot tougher.

 

 

HDD ACH Spec-Ops

The charging handles we have developed for the Scar are the best on the market. Advantages are solid construction, better grip and lightweight. These have a larger grip/handle area with pronounced knurling for faster in the field tactical use and much superior gripping with wet, bloody or gloved hands. Mounts on left or right side. Constructed as a reliable unit with professional use in mind, not a defective design multi piece handle held together with a small pin or a heavy all steel piece etc. These are made from ordnance steel inner with a 7075 T6 aluminum sharp knurled handle.

HDD ACH Spec-Ops Duo

This handle is the same as above but has a handle on the offside that fits together with the main handle so you have a handle on either side. These are the best for quick change left hand and right hand shooting positions such as encounted while clearing houses/buildings. Once you train with the Duo handles then clearing jams or reloading is accomplished quicker and easier no matter which firing position you are in.

 

The drop in barrels we build for the Scar weapon platform are now using a in house HDD designed and upgraded Scar type gas block. It looks like a factory Scar gas block but we engineered a optional 3 position gas regulator system instead of the standard "as issued" 2 position. This 3 position enhancement  serves 2 different functions depending on which Scar model it is fitted to. On the longer barreled Sniper Support Rifle, (SSR), we install the gas block with the settings of "Suppressed", "Normal", "Off", this gives the operator options of firing unsuppressed, suppressed with silencer attached and off or bolt action mode. The Off setting is for stealth use where a operator with a silencer attached doesn't want flying brass or action noise giving away his position etc.   On the CQC/SBR barrels we install the gas block with the settings of "Suppressed",  "Normal",  "Adverse",  this gives the operator the options of firing suppressed with silencer attached, unsuppressed, and the adverse setting is for extra gas needed for short cycling/fouling problems associated with extended firefights etc.  We engineered this enhanced gas block to bring the Scar operator more tactical in the field options. Our new gas block is stainless steel like the factory Scar and also takes the factory Scar front sights. The gas block is also available in a smooth top sightless version just like the new upgraded Scar carbine, the FNAC  FN Advanced Carbine  and the SSR Sniper Support Rifle. The HDD gas block can use factory Scar pistons or our new upgraded HDD full length chromed pistons with slightly larger head size for better fit and longer lasting rings. The 3 position gas regulator looks and works like a factory Scar gas regulator  but has the 3rd position option, the gas block also works with factory FNH gas regulators but of course then only has the 2 positions. The barrel extension we use on the heavy SSR (Sniper Support Rifle) barrels is also a HDD design, we make these longer and beefier than the standard factory Scar extension. These are longer to provide more bearing surface to receiver contact area, this is required for better lock up and support of the longer heavier barrels in 5.56mm and 7.62mm. On our custom Scar SSR rifles we can also use a 3 bolt  attachment on either side of our longer extensions that have 3 hole attachment similar to FN factory SSR rifles but also can facilitate the use of a very heavy barrel profile of .865" out to muzzle, we use Krieger® match grade blanks for these. The 7.62mm has 1in10 twist with cut rifling or the new 5R® rifling. The 5.56mm has 1in7 twist with cut rifling, no 5R® available in the small .224 bores.

 

To compliment our SSR configured rifles and barrels we developed and built a robust 7075 T6 aluminum stock adapter so installation of a Sniper quality stock can be facilitated on the Scar platform. We modify the Magpul PRS stock so it fits and works great on the Scar. The Spec-Ops version has a tool/battery compartment and is now in use in Afghanistan with Special Forces. You can now fit other AR15 stock options to the Scar, these include collapsable versions such as the standard M4 and Magpuls MOE, ACS and UBR etc.

 

 

HDD has built Gas Regulating Bushes for the Scar, these are Stainless and we upgraded to a Allen head design.  Much better than blade driver slotted standard bushes when it comes time to remove for cleaning gas port etc. These are used in our enhanced Scar gas blocks and fit the standard factory FN Scar gas block as well. These are listed in the Scar 16/17 Parts Category, all standard sizes available and custom sizes for odd caliber conversions can be ordered.

.

 

HDD Gas Pistons for Scar carbines

We now have the new HDD Gas Pistons for the Scar 16 and 17 carbines. These are made from high quality hardened steel and full length hard chromed. Piston head is slightly larger than factory gas piston for better fit and this helps rings last longer. The full length chrome has low friction and great wear resistance. Fits our enhanced HDD Scar gas blocks, standard FN Scar gas blocks and takes FN piston rings.

 

 

HDD Select Fire Post Sample Scar carbines

New Scar 16 & 17 Select Fire-full auto carbines. Available in all barrel lengths with our HDD options, grips, stocks, charging handles, rate of fire etc. Law Enforcement/Government Agencies and class 3 dealers with LE letter can order these. 

We have conversion kits to convert your Scar to select fire, these include complete select fire lower receiver with S 1 A markings, auto bolt carrier and short barrel if needed.      All NFA laws apply

 

HDD Scar Assaulter CQB carbines

 New Scar 16 & 17 carbines in "Assaulter-Close Quarters Battle"  trim with 10 1/2" barrels, HDD 3 position gas block with bayonet lug and  Flash Hider. M16 type bayonet compatable. The gas regulator settings on these are "Suppressed", "Normal" and "Adverse" or you can have "Suppressed", "Normal" and "Off" for Subsonic use etc. Comes with HDD Spec-Ops charging handle with angled extended knurled Knob. Engraved and registered to comply with NFA laws. Law Enforcement, Military and approved class 3 dealers  only can have the select fire option.

 

 

  Modifying the factory Scar 16 barrels to 10" CQC length and 17 barrels to 13" CQC length requires replacing the restrictor in the gas block to what we consider a fairly large size gas bush, some gunsmiths say "just remove the restrictor all together", don't do this, these guys should stick to rebluing bolt actions and stay the heck away from the Scar weapon system. Removing the restrictor will make the action function but the velocity of the bolt and carrier slamming into the back of receiver causes excessive felt recoil, cracking and damage to plastic stock mount where carrier hits it, wear and tear on components like extractor, bolt group etc and keep in mind the receiver is aluminum.  We have the gas regulator setting option of "Standard-Adverse",(mostly professional use) and "Standard-Suppressor" (sporting use). The correct size gas port will cycle the weapon reliably with various ammo and do it at a moderate velocity of the bolt. The bolt should always hold open on the last shot but not with excessive cycle speed and recoil. Can't really say how many Scar barrels we have repaired due to gunsmiths and DIY handymen getting it wrong but we have fixed flaking chrome in the bore from improperly cut barrels, reinstalled correct size gas block restricter bush to match barrel length and regulator options.  We developed the 10 1/2" Super Shorty Scar 17 SBR conversion so customers can have a true SBR and a carbine that balances so much better with silencer attached. These require adjustments to the gas system which we have perfected and these barrels  operate with the gas regulator proper function of Normal - Suppressed settings.

 

 

 

Caliber conversion kits for the Scar 16 and 17

HDD developed and built the first and only  300 AAC Blackout  conversion for the Scar 16 and is currently available as a complete rifle. We now have developed drop in barrels for this great caliber with a special gas block and regulator plug that are made for operation with the 300AAC BLK low pressure cartridge. This conversion is just a barrel swap.    We have developed and are building Scar 16 conversion kits to the 7.62x39, 6.8SPC and 9mm. These kits come with new barrel assembly, bolt assembly and magazine to suit the cartridge.

.

New Scar 17s conversion kit to 5.56 caliber. We have tested our prototype kit and the Scar 17s works great with it. Complete kit contains,  lower receiver that fits onto the Scar 17 but takes 5.56 magazines,  5.56 barrel assembly tuned to the heavier Scar 17 action,  recoil spring assembly,  5.56 bolt head that works with the 17 components and 30 round Scar 16  5.56 magazine.

Scar 17 conversions we do to 243 Winchester and 260 Remington are just barrel swaps so are a easy 10 minute conversion.

 

Future development of the Scar weapon platform at HDD Tactical

 

HDD-NRCH. This one is the Rolls Royce of Scar charging handles, a non reciprocating model, the left hand side handle stays forward while firing and only moves back when pulled by the operator to charge the weapon. A forward assist handle is incorporated  to satisfy this requirement. This system requires a new  bolt carrier to facilitate operation so won't be a $40.00 upgrade but   1 1/2   to   2   bills should get it.

Scar Bulpup and Pistol versions.

New design stock plate/pad and lower module for a short Scar bulpup is in the works at HDD with special attention to trigger pull. Bulpups always have a creepy trigger pull but with good design and materials we feel this can be overcome.

The pistol version of Scar we have developed has two models. The Scar-P7 has a modified receiver that has a short 7" barrel for 5.56 and  a 8" barrel for 7.62. The Scar-P has 10" to 14" barrels. The Scar-P will be available in 5.56, 7.62, 6.8SPC and 7.62x39.

 

 

 

 

The one we don't want to build

Scar Post Ban rifle with 16 1/2" non threaded barrel, 7 rnd mag, Solid fixed stock with thumbhole and no pistol grip etc etc etc.