It’s been mentioned earlier than that “essentially the most harmful weapon on this planet is a Marine and his rifle.” Whereas I wasn’t a Marine, I’d prefer to suppose {that a} succesful rifleman and his rifle are a drive to be reckoned with, Marine or in any other case. As such, a well-tuned and extremely succesful carbine is an absolute staple of ready dwelling. There are various prefer it, however this survival SBR is mine.
This text initially appeared in Challenge 60 of Recoil journal.
The Survival SBR Construct
I began with the navy’s “recce rifle” idea (primarily an accurized AR), scaled right down to leverage present developments in barrel know-how. This construct sports activities a tube from Rosco Manufacturing. Particularly, this one is their collaboration barrel, constructed with enter from Aaron Cowan of Sage Dynamics. It’s a 12.5-inch barrel constituted of 416R stainless with a 1:7 twist and NATO-spec 5.56mm chamber. The barrel is completed in black nitride and incorporates a proprietary “patrol size” gasoline system that’s someplace between carbine and mid-length. The thought behind this was to create a system extra dependable within the quick barrel than true mid-length, however with out the over-gassing that happens in carbine-length SBRs — notably when operating suppressed.
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This barrel is mated to a light-weight Balios Lite higher from 2A Armament, which is slicked down and evenly skeletonized to cut back weight. The decrease is an ADM UIC decrease, constructed for hard-use and sporting a full suite of utterly ambi controls. The again finish is constructed round a Main Weapons Methods enhanced buffer tube and ratcheting citadel nut with B5 SOPMOD Bravo inventory. The recoil system is a Sprinco “blue” spring with Spikes ST-T1 buffer. A Rise Armament RA-535 set off, with 3.5-pound single-stage break and a blazing-fast reset, permits for each long-range precision and rapid-fire when wanted close-in.
The handguard is an SLR Rifleworks ION Extremely Lite 11.7-inch tube. The ION Extremely Lite options seven sides of M-LOK slots in addition to a number of extra M-LOK cutouts alongside the 12-o-clock axis, with a small part of Picatinny rail on the muzzle finish. I attempted to make finest use of this configuration by clamping a Holosun LS-321 IR laser/illuminator to the entrance rail part, which is managed by a Unity Tactical TAPS change hooked up on to the 12-o-clock MLOK slots. The TAPS is a dual-lead change that single-handedly operates each the laser and white gentle – on this case, an Arisaka 18650 gentle physique with SureFire UE-series tailcap and Malkoff Gadgets E2XTL head. This head produces 500 lumens and 55,000 lux. The beam sample is tight and well-directed with minimal spill, making it particularly helpful at prolonged ranges whereas nonetheless offering a big shiny spot in CQB. The sunshine is mounted by way of an Arson Machine inline MLOK mount that pushes the sunshine out virtually to the tip of the suppressor to reduce barrel shadow. The 12-o-clock place of the TAPS, mixed with absolutely ambi controls together with Radian security and charging deal with means the manual-of-arms is completely mirrored no matter which shoulder you’re capturing from.
Talking of line-of-sight, the optics system consists of a Vortex Razor Gen III 1-10x, mounted in an ultralight Scalarworks mount, paired with a Trijicon RMR on an Arisaka offset mount, which may be configured to both 35- or 45-degree offset to accommodate scope clearance and shooter desire. It must be famous that the Razor is mounted in a 1.57-inch peak mount for higher cheek weld throughout susceptible or long-range capturing, whereas the RMR is in a 1.93-inch mount for sooner acquisition in heads-up capturing, and to allow passive aiming by NVGs.
Furnishings is rounded out with a B5 programs Kind 23 pistol grip and Strike Industries quick angled vertical grip. The Kind 23 gives a extra vertical grip angle and comes with stippling on each side and the entrance strap. We had P4 Coatings add matching stippling to the backstrap for higher grip throughout one-handed manipulations, notably when operating the gun muzzle-up. The Strike quick angled vertical grip gives just-enough vertical grip to drive the gun and supply constant support-hand indexing with out extreme protrusion. This grip additionally has molded-in channels for cable administration, however we discovered Strike’s Siegen MLOK inserts to be higher fitted to our setup. Assist-hand grip floor is augmented with insert panels from Walker Protection Analysis. These polymer panels are dusted with silicon carbide grit to offer a no-fail grip floor whereas nonetheless being light-weight and low profile.
The construct is topped off with a Blue Drive Gear VCAS sling stowed with a Neomag Sentry Strap. The Sentry Strap wraps across the handguard and is held in place with Velcro, whereas a small tail with sewn-in uncommon earth magnets retains the wrapped up whereas not in use. To deploy the sling, merely tug on it to interrupt the seal between the magnets and also you’re able to go. The barrel is capped with a Rex Silentium MOD X suppressor. The MOD X is a two-part can distinctive in that, whenever you order from a Rex supplier, it may be custom-configured to any mixture of baffles for each base unit and extension. The bottom unit may be as quick as 3 baffle, and the overall baffle depend can go as excessive as 14. We selected to set ours up with a 3-baffle base unit (seen right here) with a 5-baffle extension. The bottom unit is a compact 4.1 inches lengthy and weighs solely 8 ounces. The stubby base unit, when used alone, is way from Hollywood quiet however supplies sufficient sound suppression to save lots of your listening to whereas nonetheless being quick sufficient to hold the whole rifle in most SBR backpacks. For extra deliberate capturing classes like lessons and vary days, the extra 5-baffle unit may be threaded on for higher sound suppression.
The sum whole of those components is a single survival SBR that’s able to each CQB and long-range precision (we’ve run this rifle previous 800 yards with repeatable hits on metal), day and evening succesful utilizing white gentle or evening imaginative and prescient that may nonetheless be packed away in a duffle bag, backpack or between the seats of an SUV. It is really a go-anywhere, do-anything rifle we count on would serve us properly in any emergency.
Chosen Elements Listing
ADM UIC-15 Decrease ($350)
www.admmfg.com
Main Weapons Methods Enhanced Buffer Tube Package ($110)
www.primaryweapons.com
Rise Armament RA-535 set off ($260)
www.risearmament.com
B5 Methods SOPMOD Bravo ($60)
www.b5systems.com
Rosco 12.5” Sage Dynamics K9 Barrel ($170)
www.roscomfg.com
Vortex Razor Gen III 1-10x ($3,600)
www.vortexoptics.com
Scalarworks LEAP ($399)
www.scalarworks.com
Unity Tactical TAPS ($175)
www.unitytactical.com
Arson Machine Inline Scout Mount ($48)
www.arsonmachine.com
Arisaka 18650 w/Malkoff Gadgets E2XTL Head ($266)
www.arisakadefense.com
Holosun LS321G ($970)
www.holosun.com
Strike Industries Quick Angled Vertical Grip ($22)
www.strikeindustries.com
Strike Industries Siegen Rail Panels ($15)
www.strikeindustries.com
Walker Protection Analysis NILE MLOK panels ($50)
www.walkerdr.com
Rex Silentium MOD X ($1,100)
www.rexsilentium.com
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Disclosure: These hyperlinks are affiliate hyperlinks. Caribou Media Group earns a fee from qualifying purchases. Thanks!
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Written by Tom Marshall 
