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A lower parts kit is one of those purchases where cutting corners comes back to bite you. A soft mag catch button, a mushy detent, a gritty fire control group, and suddenly that build you were proud of feels cheap every time you handle it. Sons of Liberty Gun Works put together the Enhanced Blaster Guts kit for people who want to do it once and be done, and this version comes with their L2S Liberty 2-Stage trigger and a B5 Systems grip already in the bag.
The Liberty 2-Stage is the same trigger SOLGW runs in their Precision and Signature series rifles, so you're getting a proven fire control group rather than an afterthought. It breaks at 4.5 pounds total with a clearly defined second stage and a snappy reset, and it keeps full power springs so ignition stays reliable with harder primers. The shoe is a hybrid straight and curved design with rounded edges that sits comfortably whether you shoot with the pad or deeper on the finger, and the whole unit is machined, polished, and DLC coated for a smooth, grit-free pull that holds up over time. It works just as well on a short carbine as it does on a precision gun, which is exactly the point of a good two stage.
The small parts are where SOLGW separates itself from bargain kits. The bolt catch is investment cast from AISI 8620 steel per the USGI TDP, not the MIM parts you'll find floating around the commercial market. The safety and takedown detents are solid hardened stainless from KNS Precision, the mag catch and takedown pins are machined 8620 that's heat treated and coated to spec, and the mag button is steel instead of the aluminum most kits sneak in. This kit ships with the standard mil-spec safety selector and drops into most mil-spec AR-15 lowers, and like everything SOLGW makes, it's guaranteed for life. Grab one for the build on your bench and you'll probably grab another for the spare parts bin.
This kit includes SOLGW's L2S Liberty 2-Stage trigger, the same fire control group they install in their Precision and Signature series rifles. It breaks at 4.5 pounds total with a distinct second stage and quick reset, and it's machined, polished, and DLC coated. It also uses full power springs, so reliable ignition isn't traded away for a nicer pull.
Yes, the Enhanced Blaster Guts is built to mil-spec dimensions or better and drops into most mil-spec AR-15 lowers. The pins are standard .154 inch fire control size. As long as your receiver is machined to spec, everything should go in without drama.
The Enhanced version adds a B5 Systems pistol grip and upgrades the fire control group, and this particular model swaps the Liberty Fighting Trigger for the L2S two stage. The standard Blaster Guts uses the single stage LFT and skips the grip. If you prefer a defined take-up and a lighter, crisper break, the L2S version is the one to get.
No, the MS in the part number stands for the standard mil-spec safety, which is a right-handed single-sided selector. SOLGW does make versions of the Enhanced Blaster Guts with an ambi safety if that's important for your setup. The detent that rides against the selector is hardened stainless from KNS, so the throw feels crisp either way.
| UPC | 644625080834 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | EBG-B5-L2S-MS |
| Color | Black |
| Model | |
| Product Type | Lower Parts Kit |
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