SOTM4MOD1 A5 Forged Complete Lower Receiver

Description

The lower the forged rifles are built on. A forged SOTM4 lower, its grain following the shape of the receiver for strength and toughness under hard use, held to Mil-Spec dimensions so it pairs with any Mil-Spec AR-15 upper, and built with the same trigger, controls and A5 recoil system as the SOTM4A5 forged rifles. Bombproof by Design™.

Open the zoom viewers, photographed as built on both sides: FDE · Black.

Choose the finish when you order: FDE B5 Systems stock and grip, or black.

Lower Receiver

• SOTM4MOD1 A5 forged lower, black anodized, rollmarked MOD: SOT M4 · CAL: MULTI
• Schmid Inside Elite 2-Stage trigger, DLC, curved bow (SI-FCG-2S6-ELT), standard: 3.5 lb total, 2.0 lb first stage, 1.5 lb second
• Optional trigger, installed in place of the Schmid, $100.00: Geissele Automatics G2S® two-stage (4.25–4.75 lb total)
• Optional trigger, installed in place of the Schmid, $100.00: LaRue Tactical MBT-2S two-stage, curved or straight bow
• Second of Ten does not stone, polish or modify sear engagement surfaces
• Geissele Automatics Ambi Posi-Snap safety selector
• Geissele Automatics Maritime bolt catch (08-153), left side only: this version has no ambidextrous bolt release
• Button magazine release
• Nitride takedown and pivot pins
• B5 Systems Bravo aluminum trigger guard (ATG-1092), enlarged bow

Recoil System

• SOT A5 nine-position buffer tube, numeric index marks 1 through 8 laser engraved, for setting and returning to a stock position
• A5H2 buffer and A5 rifle-length action spring
• Forward Controls Design CN5F extended castle nut, staked, with Vibra-TITE VC-3 on the extension and nut threads
• B5 Systems quick-disconnect end plate (AEP-1090), one-piece steel, manganese phosphate, single-point QD sling attachment

Furniture

• B5 Systems Bravo stock (BRV-1085), FDE or black, with an index window over the buffer tube
• B5 Systems Type 23 P-Grip, FDE or black

Extra Information

• Not included: upper receiver, bolt carrier group, charging handle, magazine
• The selector is marked SAFE / SEMI / AUTO for appearance only: every Second of Ten firearm is semi-automatic, with a semi-automatic trigger
• Not available in California, Connecticut, Delaware, Illinois, Maryland, Massachusetts, New Jersey, New York, Rhode Island, Washington or Washington, D.C.
• Laws change: please confirm with your local FFL before ordering
• Serialized firearm · ships to your FFL dealer only

Geissele Automatics, LaRue Tactical, Schmid Inside, B5 Systems and Forward Controls Design marks are the property of their owners. Their appearance indicates that Second of Ten incorporates the component, not sponsorship, affiliation or endorsement.

Open the sell sheet: the full specification, options and prices on one printable page.